Honeywell 11255 Users Manual AMKT0103Ka

11255 to the manual cfab6526-5a59-4a43-9c3e-f493b5cd7b6b

2015-01-23

: Honeywell Honeywell-11255-Users-Manual-260968 honeywell-11255-users-manual-260968 honeywell pdf

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For fast, efficient service, contact us today at

1-800-347-2220
and look for us on the internet at
www. precisionaire.com

PRODUCT CATALOG AMKT0103a
Supersedes all previous catalogs.

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Dear Customer,
As a global leader in the production of high quality air filtration products, Flanders Corporation continues to develop new innovations in
design, new methods of manufacturing and a higher level of customer service to provide you, our representative and distributor, with
the most comprehensive product offering available to the filtration
industry.
The quality of air we breathe has become one of the most important
issues of the new millennium and "Indoor Air Quality" is a term that
almost everyone relates to on one level or another. At Flanders, we
are proud to offer the products presented in this catalog as a tool to
help you make a difference in providing cleaner air to your customer
and in making your business as profitable as it can be! We are dedicated to your success!
The filtration industry will see phenomenal growth over the years to
come and the products in this catalog will be the basis of design for
many projects. From the simple pleated panel filter to high performance v-bed cartridge filters, from mechanical engineer to building
owner or occupant, Flanders has a product to meet the specification.
With ten manufacturing facilities in six states and sales offices
nationwide and abroad, Flanders Corporation remains poised to
meet the challenges of projects everywhere.
Thank you for choosing Flanders as your air filtration supplier.
Flanders is the name that means clean air!
Regards,
David Aaronson
Vice President of Sales-HVAC Division

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The widest selection of disposable
panels you will find anywhere. Spun
glass and synthetic media...all standard sizes and almost any
“special” size.

Polyester Panels, Links, Sleeves

Disposable Air Filters

A complete line of
aftermarket filter products for all
styles of paintbooth...downdraft,
cross-draft and work station.

Paint Booth Products

High grade polyester synthetic fiber media in a variety of styles,
heat sealed onto heavy wire frames.

Air Filter Media & Auto Rolls
Cut-to-fit hammock and service roll media in
a variety of styles, plus bulk rolls of spun
glass and synthetic media. Auto rolls in the
media style of your choice, wound on the
core style of your choice. Hundreds of models.

Pleated Air Filters

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One of the largest inventories of
pleated panel filters you will find
anywhere. Five styles are offered
in just about any size you will
ever need.

Medium & High
Efficiency Rigid Type
Air Filters
A wide variety of styles, sizes
and efficiencies.

Medium & High Efficiency Extended
Surface Type Filters

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Huge line of “bag” filters in all of the most popular
sizes and efficiencies, plus our new XDH bag which
holds up to twice as much dust as ordinary bags.

Metal Washable Filters
Gas Phase and Odor Control

Pleated panel filters that have been treated with special
odor adsorbing/neutralizing materials, as well as 50% &
75% fill granular carbon filters.

Rugged metal filters for a variety
of applications. Top quality
materials and workmanship.

HEPA Filter

For genuine HEPA grade filtration with minimum efficiency of 99.97% on
0.30 micrometer size particles.
Several types, including high
capacity, high temp, high velocity,
minipleat panels, terminal modules and fan powered modules.

Framing Systems and Holding Frames

Residential/Light Commercial Air
Cleaners & Filters
Fast, easy and profitable air filtration upgrades...made
by one of the world’s leaders in critical air filtration.
Equal or superior filter media replacements for competing systems...and typically easier to install.

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Media holding frames, filter holding frames, modular filter framing systems and hard ceiling adaptor
framesfor Terminal Modules

Electronic Air Cleaners
Near-HEPA quality air purification for the
whole house or just a room.

Replacement Air Filter
Catalog

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Table of Contents

Disposable Air Filters:

Page

Heavy Duty Box Frame, Spun Glass or Synthetic Media . . . . . . . . . . . . . . . . .8

EZ Flow and EZ Flow II

Continuous Filament Spun Glass, Box Frame

Pinch Frame

Framed Polyester Media with Metal on One Side . . . . . . . . . . . . . . . . . . . . . .12

HD Industrial Grade

. . . . . . . . . . . . . . . . . . . . . . .10

Polyester Panels, Links, Sleeves and Cube Filters:
Heat Sealed Polyester Support Frame Products . . . . . . . . . . . . . . . . . . . . . .14

Prelock

Paint Booth Products

Supported Panels, Cubes, Diffusion Media and Paint Arrestors . . . . . . . . . . .16

FP319A

Two-stage and Three-stage Paint Systems` . . . . . . . . . . . . . . . . . . . . . . . . . .24

Paint Booth Filtration

Air Filter Media and Auto Rolls:

Hammock, Permaire and Service Rolls and Pads . . . . . . . . . . . . . . . . . . . . .26

Bulk Media

Fiberglass and Synthetic Media, Rolls and Pads . . . . . . . . . . . . . . . . . . . . . .28

Auto Roll Media

Treated Polyester, Scrim Back, Skin Back, Fiberglass . . . . . . . . . . . . . . . . . .30

Cut-to-Fit

Pleated Air Filters

V Wedge Pleat, Carrier Board Frame, 25-30% Efficient . . . . . . . . . . . . . . . . .32

Pre Pleat HV

High Velocity/Gas Turbine Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Pre Pleat 62R

Electrostatically Charged Fibers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Pre Pleat 62RM11

MERV 11 Electrosttically Charged Fibers . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Pre Pleat Class 1

UL Class 1 Fire Rated Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Pre Pleat HT

High Temperature Pleated Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

E35

Metal Support Grids, 25-30% Efficient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Pre Pleat 40

Superflow V
Rigid-Air

Medium and High Efficiency Rigid Type Filters:

Extended Surface Minipleat Aor Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Extended Surface Lofted Media Box Type Filters . . . . . . . . . . . . . . . . . . . . . .59

Extended Media Separator Type Rigid Filters . . . . . . . . . . . . . . . . . . . . . . . .53

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PrecisionCell

PrecisionCell II

Extended Surface Minipleat Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

EA Cartridge

Replacement Filter Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Medium and High Efficiency Extended Surface Type Filters:
Extended Surface Bag Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Precision Pak XDH

High Capacity Extra Dust Holding Bag Filters . . . . . . . . . . . . . . . . . . . . . . . .71

Precision Pak

Metal Washable Filters

MS/MSG

Moisture/Oil Mist Separators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

KKM

Industrial Grade Aluminum or Galvanized Filters . . . . . . . . . . . . . . . . . . . . . .78

Replacement Air Filter
Catalog

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Table of Contents

HEPA and 95DOP Filters

95% DOP Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Alpha Cell

HEPA Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Alpha 2000

High Capacity HEPA Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Alpha HT

High Temperature HEPA Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

Superflow 2K

High Velocity HEPA Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Alpha Panel

Minipleat HEPA/ULPA Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

Pureflo

Terminal HEPA/ULPA Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

Pureflo-FPM

Fan Powered Terminal Filter Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

Alpha 95

Gas Phase and Odor Control:
FCP Carbon Pleat

Fine Mesh Carbon, Outperforms Carbon Slurry . . . . . . . . . . . . . . . . . . . . . .101

PH Odor Control

Pleated Filter Treated with Sodium Bicarbonate . . . . . . . . . . . . . . . . . . . . . .103

Model C

50% and 75% Fill Granular Carbon Filters . . . . . . . . . . . . . . . . . . . . . . . . . .105

Framing Systems and Holding Frames:
Filter Holding Frames and Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Uni-Frame

Media Holding Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121

K-Trac

Modular Filter Framing Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Perma Frame

Hard Ceiling Adaptor Frames For Terminal Modules . . . . . . . . . . . . . . . . . . .126

Type 9

Residential/Light Commercial Air Cleaners and Filters:
Air Cleaner Refills

Space Gard®, Air Bear® and Honeywell® Air Cleaners . . . . . . . . . . . . . . . . .128

Model 500AB

Air Cleaner Housings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

Electronic Air Cleaners
Airia 350

High Capacity In-Room Air Cleaner In Handsome Cabinet . . . . . . . . . . . . . .132
In-Duct Electrostatic Air Cleaners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133

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Aria 1000 and 2000

HD Industrial Grade

Model Numbers:

Spun Glass Media - Model 10255.xxxxxx
Synthetic Media - Model 11255.xxxxxx

Within each section in the page heading or in the
body, you will see model number abbreviations
to help you find these products in the separate
Flanders price book. These will typically appear
as a family code followed by “xxx’s” which indicate dimensions or other identifying characteristic of specific products.

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Heavy Duty Disposable Panel Filters

General
Flanders HD Industrial Grade filters are designed
for use in any application where disposable panel
filters are recommended. They can be relied upon
for superior performance since they are specifically
designed for heavy workloads. A wide range of
standard face sizes is available, plus nearly any
“special” size.

Construction
Flanders HD Industrial Grade filters are designed
with a one-piece moisture-resistant chipboard
frame enclosing media. Standard frames are nominal 1” thick (3/4” actual) and nominal 2” thick (1-5/8”
actual).
The fiberglass media filter consists of continuousfilament fibers bonded together with thermo-setting

resin. The synthetic media filter consists of 100%
high bulk polyester fibers that are thermo bonded
with a fire retardant resin.
Support grilles of perforated corrosion-resistant
steel or expanded metal are provided on both sides
of the filter. The media pads and support grilles are
continuously glued to the inside perimeter of the
frame, resulting in exceptional strength and rigidity.
This design virtually eliminates the possibility of
media sag within the frame.

Physical Data
Frame: One-piece moisture-resistant chipboard
Media:: Fiberglass or Synthetic
Support Grille: Perforated corrosion-resistant steel orexpanded wire on both sides of the filter
Sealant: Hot-melt resin

Important Features
• One-piece moisture-resistant chipboard
frame prevents broken corners
• Support grilles on both sides for exceptional strength

Synthetic

• Media and grilles continuously glued to
the inside perimeter of the frame for rigidity
• Filters are UL 900 Class 2 listed

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

HD Industrial Grade
Heavy Duty Disposable Panel Filters

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Spun Glass Media - Model 10255.xxxxxx
Synthetic Media - Model 11255.xxxxxx
Grille Sizes - Model 10355.xxxxx

Flanders HD Industrial Grade filters are designed
with a one-piece moisture-resistant chipboard
frame enclosing media. Standard frames are nominal 1” thick (3/4” actual) and nominal 2” thick (1-5/8”
actual).

Physical Data

Frame: One-piece moisture-resistant chipboard
Media:: Fiberglass or Synthetic
Support Grille: Perforated corrosion-resistant steel orexpanded wire on both sides of the filter
Sealant: Hot-melt resin

The fiberglass media filter consists of continuousfilament fibers bonded together with thermo-setting

Support grilles of perforated corrosion-resistant
steel or expanded metal are provided on both sides
of the filter. The media pads and support grilles are
continuously glued to the inside perimeter of the
frame, resulting in exceptional strength and rigidity.
This design virtually eliminates the possibility of
media sag within the frame.

Construction

resin. The synthetic media filter consists of 100%
high bulk polyester fibers that are thermo bonded
with a fire retardant resin.

Flanders HD Industrial Grade filters are designed
for use in any application where disposable panel
filters are recommended. They can be relied upon
for superior performance since they are specifically
designed for heavy workloads. A wide range of
standard face sizes is available, plus nearly any
“special” size.

General

Important Features

• One-piece moisture-resistant chipboard
frame prevents broken corners
• Support grilles on both sides for exceptional strength

Synthetic

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• Media and grilles continuously glued to
the inside perimeter of the frame for rigidity
• Filters are UL 900 Class 2 listed

• 1/2”, 1”, 2” depths

• Special sizes available upon request

Spun Glass

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Performance Data - HD Industrial Grade
cfm @ 300 fpm

Standard Carton Qty.

9-7/8 x 9-7/8 x 3/4
9-7/8 x 19-7/8 x 3/4
9-7/8 x 23-7/8 x 3/4
9-7/8 x 24-7/8 x 3/4
9-7/8 x 29-7/8 x 3/4
11 -7/8 x 11 -7/8 x 3/4
11 -7/8 x 19-7/8 x 3/4
11 -7/8 x 23-7/8 x 3/4
11 -7/8 x 24-7/8 x 3/4
11 -7/8 x 29-7/8 x 3/4
13-7/8 x 13-7/8 x 3/4
13-7/8 x 19-7/8 x 3/4
13-7/8 x 23-7/8 x 3/4
13-7/8 x 24-7/8 x 3/4
13-7/8 x 29-7/8 x 3/4
14-7/8 x 19-7/8 x 3/4
14-7/8 x 24-7/8 x 3/4
15-7/8 x 15-7/8 x 3/4
15-3/4 x 19-1/2 x 3/4
15-7/8 x 23-7/8 x 3/4
15-3/4 x 24-5/8 x 3/4
17-7/8 x 19-7/8 x 3/4
17-7/8 x 23-7/8 x 3/4
17-7/8 x 24-7/8 x 3/4
18-7/8 x 26-7/8 x 3/4
19-5/8 x 19-5/8 x 3/4
19-7/8 x 23-7/8 x 3/4
19-5/8 x 24-5/8 x 3/4
19-7/8 x 29-7/8 x 3/4
21-7/8 x 21-7/8 x 3/4
23-7/8 x 23-7/8 x 3/4
23-7/8 x 29-7/8 x 3/4
24-7/8 x 24-7/8 x 3/4
9-7/8 x 9-7/8 x 1-5/8
9-7/8 x 19-7/8 x 1-5/8
11-1/2 x 23-1/2 x 1-5/8
13-7/8 x 19-7/8 x 1-5/8
13-7/8 x 24-7/8 x 1-5/8
14-7/8 x 19-7/8 x 1-5/8
15-3/4 x 19-1/2 x 1-5/8
15-3/4 x 23-1/2 x 1-5/8
15-3/4 x 24-1/2 x 1-5/8
17-7/8 x 23-7/8 x 1-5/8
19-1/2 x 19-1/2 x 1-5/8
19-1/2 x 23-1/2 x 1-5/8
19-1/2 x 24-1/2 x 1-5/8
23-1/2 x 23-1/2 x 1-5/8
24-7/8 x 24-7/8 x 1-5/8

208
417
500
521
625
300
500
600
625
749
408
583
700
729
875
625
781
533
667
800
833
750
900
938
1069
833
1000
1042
1250
1008
1200
1500
1302
208
417
600
584
730
625
667
800
834
900
834
1000
1042
1200
1302

12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

Weight per Carton (lbs.)
3.3
5.2
6.1
6.5
7.0
4.0
5.8
6.7
7.5
8.0
5.2
6.2
7.3
7.7
10.5
6.7
6.8
6.3
6.9
8.5
8.3
8.0
9.0
9.6
11.8
7.9
9.5
9.5
12.5
9.5
11.3
14.3
13.5
3.9
6.6
8.0
9.1
10.5
9.6
9.6
11.6
11.6
12.8
11.9
14.2
14.0
16.0
17.2

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Actual Size H x W x D (in)

10x10x1
10x20x1
10x24x1
10x25x1
10x30x1
12x12x1
12x20x1
12x24x1
12x25x1
12x30x1
14x14x1
14x20x1
14x24x1
14x25x1
14x30x1
15x20x1
15x25x1
16x16x1
16x20x1
16x24x1
16x25x1
18x20x1
18x24x1
18x25x1
19x27x1
20x20x1
20x24x1
20x25x1
20x30x1
22x22x1
24x24x1
24x30x1
25x25x1
10x10x2
10x20x2
12x24x2
14x20x2
14x25x2
15x20x2
16x20x2
16x24x2
16x25x2
18x24x2
20x20x2
20x24x2
20x25x2
24x24x2
25x25x2

Nominal Size (in.)

Standard Sizes

1.0 General

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Typical initial (clean) pressure drop at nominal cfm is 0.07 in. w.g. for 1 in. filters and 0.10 in. w.g. for 2 in. filters. Recommended final
resistance is 0.50 in. w.g., but the system design may dictate a lower change out point.

Guide Specifications

1.1Disposable filters shall be Model HD Industrial
Grade filters as manufactured by Flanders.

1.2 Filters shall be UL 900 Class 2 listed.

2.2 Perforated corrosion-resistant steel or expanded
metal support grilles shall be furnished on both
entry and exit sides of the filter.
2.3 Media and grilles shall be continuously glued to
the inside perimeter of the frame.

2.0 Filter Construction

3.0 Performance

2.1 Filters shall be constructed of fiberglass or synthetic media (as specified) enclosed in a onepiece chipboard frame.

3.1 The manufacturer shall guarantee performance
as stated in its literature within tolerances as outlined in Section 7.4 of ARI Standard 850.
9

EZ Flow and EZ Flow II
Disposable Panel Air Filters

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EZ Flow - Model 10155.xxxxxx
EZFlow II - Model 10055.xxxxxx

Construction
The frame is made from heavy chipboard in a onepiece design that eliminates corner separation.

SEALING is accomplished with a resilient hot-melt
adhesive running the full perimeter of the frame on
both upstream and downstream sides.
UL MARKING appears on the filter frame. These filters have been tested by Underwriters Laboratories
Inc. and are classified as UL 900 Class 2 for flammability.

Important Features

• One-piece frame

The filtering media is continuous filament spun
glass. A resinous bonding agent provides rigidity
and resistance to media compression.

MEDIA SUPPORT of the EZ Flow is provided by
one metal retainer on the downstream side, either
punched metal plate or expanded metal, depending
on face size. The EZ Flow II is made to function
without a retainer, by adhering the frame directly to
the media which has a light skin to make it selfretaining.

EZ Flow and EZ Flow II disposable filters are
designed for protection of furnace and central air
units in residential and light commercial applications. Construction of both models is identical
except for the media retainer. The EZ Flow features
a metal media retainer on the downstream side
while the EZ Flow II has no media retainer. Instead,
the media itself is adhered directly to the frame for
non-metallic applications.

General

• UL 900 Class 2
• UPC marked

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• No media retainer on EZ Flow II

• Metal media retainer on EZ Flow
• 1/2”, 1” and 2” depths

• All standard sizes plus special sizes

EZ Flow II
No Metal

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

EZ Flow
Metal on Downstream Side

Standard Sizes

Performance Data - EZ Flow and EZ Flow II
Actual Size H x W x D (in)

cfm @ 300 fpm

Standard Carton Qty.

Weight per Carton (lbs.)

10x10x1
10x20x1
10x24x1
10x25x1
10x30x1
12x12x1
12x20x1
12x24x1
12x25x1
12x30x1
14x14x1
14x20x1
14x24x1
14x25x1
14x30x1
15x25x1
15x20x1
15x30x1
16x16x1
16x20x1
16x22x1
16x24x1
16x25x1
18x20x1
18x24x1
18x25x1
19x27x1
20x20x1
20x22x1
20x24x1
20x25x1
20x30x1
22x22x1
24x24x1
24x30x1
25x25x1
10x10x2
10x20x2
12x24x2
14x20x2
14x25x2
15x20x2
16x20x2
16x24x2
16x25x2
18x24x2
20x20x2
20x24x2
20x25x2
24x24x2

9-7/8 x 9-7/8 x 3/4
9-7/8 x 19-7/8 x 3/4
9-7/8 x 23-7/8 x 3/4
9-7/8 x 24-7/8 x 3/4
9-7/8 x 29-7/8 x 3/4
11 -7/8 x 11 -7/8 x 3/4
11 -7/8 x 19-7/8 x 3/4
11 -7/8 x 23-7/8 x 3/4
11 -7/8 x 24-7/8 x 3/4
11 -7/8 x 29-7/8 x 3/4
13-7/8 x 13-7/8 x 3/4
13-7/8 x 19-7/8 x 3/4
13-7/8 x 23-7/8 x 3/4
13-7/8 x 24-7/8 x 3/4
13-7/8 x 29-7/8 x 3/4
14-7/8 x 24-7/8 x 3/4
14-7/8 x 19-7/8 x 3/4
14-7/8 x 30-1/2 x 3/4
15-7/8 x 15-7/8 x 3/4
15-3/4 x 19-1/2 x 3/4
15-7/8 x 22-1/8 x 3/4
15-7/8 x 23-7/8 x 3/4
15-3/4 x 24-5/8 x 3/4
17-7/8 x 19-7/8 x 3/4
17-7/8 x 23-7/8 x 3/4
17-7/8 x 24-7/8 x 3/4
18-7/8 x 26-7/8 x 3/4
19-5/8 x 19-5/8 x 3/4
19-7/8 x 22-1/8 x 3/4
19-7/8 x 23-7/8 x 3/4
19-5/8 x 24-5/8 x 3/4
19-7/8 x 29-7/8 x 3/4
21-7/8 x 21-7/8 x 3/4
23-7/8 x 23-7/8 x 3/4
23-7/8 x 29-7/8 x 3/4 1
24-7/8 x 24-7/8 x 3/4
9-7/8 x 9-7/8 x 1-5/8
9-7/8 x 19-7/8 x 1-5/8
11-1/2 x 23-1/2 x 1-5/8
13-7/8 x 19-7/8 x 1-5/8
13-7/8 x 24-7/8 x 1-5/8
14-7/8 x 19-7/8 x 1-5/8
15-3/4 x 19-1/2 x 1-5/8
15-3/4 x 23-1/2 x 1-5/8
15-3/4 x 24-1/2 x 1-5/8
17-7/8 x 23-7/8 x 1-5/8
19-1/2 x 19-1/2 x 1-5/8
19-1/2 x 23-1/2 x 1-5/8
19-1/2 x 24-1/2 x 1-5/8
23-1/2 x 23-1/2 x 1-5/8

208
417
500
521
625
300
500
600
625
749
408
583
700
729
875
781
625
957
533
667
742
800
833
750
900
938
1069
833
938
1000
1042
1250
1008
1200
500
1302
208
417
600
584
730
625
667
800
834
900
834
1000
1042
1200

12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

3.3
5.6
6.1
6.5
5.8
4.0
5.8
6.7
7.5
7.8
5.2
6.2
7.3
7.7
10.5
6.8
6.7
9.8
6.0
6.9
8.3
8.5
8.3
8.0
9.0
9.6
11.8
7.9
9.3
9.5
9.5
12.5
9.5
11.3
14.3
13.5
3.9
6.6
8.0
9.1
10.5
9.6
9.6
11.6
11.6
12.8
11.9
14.2
14.0
16.0

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Nominal Size (inch)

fil

Notes:
1. Contact your local representative or the factory for additional standard sizes. Special
sizes are also available.
2. Manufacturing tolerances are +0”, -1/8” on height and width.
3. Nominal cfm is calculated at 300 fpm gross face velocity.
4. Typical initial (clean) pressure drop at nominal cfm is 0.07” w.g. for 1” filters and 0.10”
w.g. for 2” filters.
5. Recommended final resistance is 0.50” w.g., but the system design may dictate a lower
changeout point.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Pinch Frame
Disposable Panel Air Filters

Originally designed for light commercial and industrial applications, the Flanders Pinch Frame filter is
an excellent choice for use in residential furnace
systems.
The filter is produced on state-of-the-art production
line machinery. The result is a filter of consistently
high quality at a competitive price.

Construction

The media is made of 100% nonwoven polyester
synthetic fibers chemically bonded with a fire retardant resin. Because of the synthetic nature of the
fiber, the media is extremely resistant to moisture
and other environmental extremes.

Physical Data

Frame: One-piece chipboard
Media: Dry resinated polyester
Support Grid: Perforated metal on air-exit side
Sealant: Hot-melt resin
Nominal Thickness: 1”
Flammability: UL 900 Class 2

Important Features

This disposable heating and air conditioning filter
has a one-piece chipboard frame. This feature eliminates the problems associated with a four-piece
frame, such as broken corners and exposed metal
edges.

The Flanders Pinch Frame disposable air filter provides the user with a product of high quality and
strength.

The Pinch Frame filter utilizes a heat seal to bond
the frame to the filter media and metal support grid.
This process permits the use of a single metal grid
on the air exit side only, thus maximizing filter face
area and extending service life.

General

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Model 11655.xxxxxx

• One-piece chipboard frame prevents broken corners and exposed metal.

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• Heat-sealed frame provides unusual strength
and serviceability.
• A metal grid on the air-exit side assures more
open face area and longer service life.

• Resinated polyester media provides resistance
to moisture.

• Filters are UL 900 Class 2 listed.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

10x20x1
10x24x1
10x30x1
12x20x1
12x24x1
12x25x1
12x27x1
12x30x1
14x20x1
14x24x1
14x25x1
14x30x1
15x20x1
15x30x1
16x20x1
16x25x1
16x30x1
18x25x1
20x20x1
20x24x1
20x25x1
20x30x1
24x24x1
25x25x1

9-7/8 x 19-7/8 x 7/8
9-7/8 x 23-7/8 x 7/8
9-7/8 x 29-7/8 x 7/8
11 -7/8 x 19-7/8 x 7/8
11 -7/8 x 23-7/8 x 7/8
11 -7/8 x 24-7/8 x 7/8
11-7/8 x 26-7/8 x 7/8
11 -7/8 x 29-7/8 x 7/8
13-7/8 x 19-7/8 x 7/8
13-7/8 x 23-7/8 x 7/8
13-7/8 x 24-5/8 x 7/8
13-7/8 x 29-7/8 x 7/8
14-7/8 x 19-5/8 x 7/8
14-7/8 x 29-7/8 x 7/8
15-5/8 x 19 5/8 x 7/8
15-5/8 x 24-5/8 x 7/8
15-7/8 x 29-7/8 x 7/8
17-7/8 x 24-7/8 x 7/8
19-5/8 x 19-5/8 x 7/8
19-7/8 x 23-5/8 x 7/8
19-5/8 x 24-5/8 x 7/8
19-7/8 x 29-7/8 x 7/8
23-1/2 x 23-1/2 x 7/8
24-7/8 x 24-7/8 x 7/8

cfm @ 300 fpm
420
500
620
500
600
620
670
750
580
700
730
870
620
940
670
830
1000
940
830
980
1040
1250
1200
1300

4.0
5.0
5.5
4.5
5.0
5.0
6.0
6.0
4.5
5.5
5.5
6.5
5.0
6.0
5.5
6.5
7.5
6.0
6.0
6.5
7.0
8.5
8.0
8.5

Guide Specifications

fil

1.0 General

1. Manufacturing tolerances are +0”, -1/8”
2. All sizes are packed 12 per carton

12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

Weight per Carton (lbs.)

Notes:

Standard Carton Qty.

Actual Size H x W x D (inches)

Nominal Size (inch)

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Performance Data - Pinch Frame

Standard Sizes

1.1 Disposable filters shall be Pinch Frame filters as
manufactured by Flanders..

1.2 Filters shall be UL 900 Class 2 listed.
2.0 Filter Construction

2.1 Filters shall be constructed of resinated polyester
media and a metal air-exit grid heat sealed
together in a one-piece chipboard frame.

3.0 Performance
3.1 The average arrestance of 70% shall be as determined by the ASHRAE Standard 52.1 test
method.
3.2 The manufacturer shall guarantee performance
as stated in its literature within tolerances as
outlined in Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Link Panels

Cubes are internally supported filters similar to the
Polyester Panel. The exception is greater surface
area for contamination capture. Unitary, 2-pocket or
3-pocket construction is available throughout our
entire product offering. Cubes are available with
13/16” thick headers for side access installations or
other systems where a header is required.

A Moisture-resistant Alternative

Because these filters are made with only metal and
synthetic materials, they are an excellent alternative to paper-frame filters in high moisture areas
because they are naturally moisture-resistant and
will not deteriorate or warp in wet or humid conditions.

Flanders Ring Panel filters can be ordered as standard single panels or as link panels. A link panel is
made by heat sealing individual Ring Panel filter
panels end to end to achieve desired dimensions.

Cubes

Flanders Ring Panel and
Cube filters are made by
heat sealing layers of synthetic filtering media
together over an interior,
corrosion-resistant steel
support frame. An overcut
of media outside the sealforms a built-in gasket
(selvage) between the
wire support frame and
holding frame, which secures the filter and prevents
air bypass. This special feature allows these filters
to be installed without the use of retainer fasteners

dard Ring Panel. The only major difference in
construction with the Sleeve Panel is that one
end is left unsealed. Therefore, the interior support frame can be removed and used over and
over again, with just the soiled media thrown
away. This is more economical and makes disposal easier.

Rugged, Heat-sealed,Construction

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Ring Panels, Links, Sleeves
and Cubes

Sleeve Panels

Important Features

Sleeve Panels are nearly identical to the stan-

• Heat sealed construction

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• Tackified, progressive density
media
• 2, 3 and 4-ply combinations
• 100% moisture resistant

• 9 gage galvanized wire frame

• Merv 6-10 available

• UL 900 Class 2

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Series ST55-Polyester Panel
Two-ply 1” nominal media construction using a 1/2” nominal white polyester on the upstream, followed by a 1/2” nominal green super tackified
polyester downstream.

Series 225T-Polyester Panel or Cubes

Models 225RT-xxxx Ring Panel, 225LT-xxxx Link,
CUBx225T-xxxxxx Cube

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Models ST55R-xxxx Ring Panel and ST55L-xxxx Link

Two-ply 1” nominal media construction, using a 3/4” nominal white polyester on the up-stream, with internal tackification followed by a 1/4”
dense white polyester downstream.

Series 325T-Polyester Panel or Cubes

Models 325RT-xxxx Ring Panels and 325LT-xxxx Links
CUBx325T-xxxxxx Cube

Three-ply 1-3/4”” nominal media construction, using a 1-1/2” nominal
white/green dual density, multidenier polyester upstream, with internal
tackification followed by a 1/4” dense white polyester downstream.

Series 425T-Polyester Panel or Cubes

Models 425RT-xxxx Ring Panels and 425LT-xxxx Links
CUBx425T-xxxxxx Cube

Four-ply 1-3/4”” nominal media construction, using a 1-1/2” nominal
white/green/white tridensity, multidenier polyester upstream,with internal
tackification followed by a 1/4” dense white polyester downstream.

Use link panels for easy
installation in filter
tracks and eliminate air
bypass!

Overcut gaskets
against air
bypass.

fil

Link panels make installation
easy. Just unfold the filter
and slide it into the track as
one continuous, long filter.
When time to replace it, the
whole filter comes out easily
in one piece. Plus, the sealing between links and the
generous selvedge eliminates air bypass.

Goes in as one
piece. Comes out
as one piece.

Link Panels are heatsealed together.

Moisture
resistant
materials

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Paintbooth Filtration

Flanders offers a wide variety of filtration products for
downdraft and crossdraft paintbooths and prep stations. For the most part, fitlration products required for
all of these fall into three general categories which are
color coded to the drawings at left which indicate their
placement in each type of booth.

Downdraft

Intake Filters

Prep Station

Air Intake filters are as important to a great paint job
as the booth itself. The intake filters are the primary
defense against foreign particles landing on the painting surface. Any particle larger than 10 microns can
cause a defect on a paint job. Intake filters are typically either panels or pads. Intake filters in a downdraft booth and prepstations are above the painting
surface. In crossdraft booths, they are typically in the
door.

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Crossdraft

Exhaust/Paint Arrestor Filters

Exhaust filters play an important role in maintaining
proper air flow balance, increasing cleanliness of
exhaust stacks, reducing maintenance of the exhaust
system and in controlling V.O.C. emissions. The purpose of exhaust filters is to capture overspray particles and remove them from the airstream as air is
removed or recirculated back into the booth.
Crossdraft and semi-downdraft booths use media
pads which are placed on grids in the rear wall or
lower portion of the side walls in filter housings.
Downdraft booths use a long pad that is placed into a
pit below the painting surface.

Prefilters
A prefilter is designed to filter out large particles
before the air reaches the intake filter. This prolongs
the life of the intake filter, increases airflow in your
booth and reduces maintenance costs on the intake
stack and mechanical parts. The prefilter is typically
found only in heated booths. Crossdraft booths will
very rarely have a prefilter. In downdraft and semidowndraft booths, the prefilter is located somewhere
along the duct-work bringing air into the booth.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

SA600-G10 Diffusion Media for Air Intake

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Models SA600-xxx

The SAR-1 media, made in Switzerland, has a 1/2“
loft, and is optimally designed for efficiency and
dust holding capacity. For crossdraft booths, the
SAR-1 pad, sometimes referred to as a blanket, is
tucked into the doors of the booth. There is usually only one large pad on each door. Oversized
SAR-1 media pads can be easily trimmed.

Model SAR1Pxx-xxxx

For use in crossdraft and some downdraft
booths.The SAR-1 PANEL, made in Switzerland, is
a premium choice for panel filtration. The SAR-1
PANEL is made from two media pads. A metal
support is dielectrically heat sealed in between the
two media layers providing support and rigidity.

Flanders’ re-engineered media and manufacturing
process has virtually eliminated these flaws. Using
ecologically sound materials, and eliminating PVC
resins, the media discoloration and media expansion have been minimized. The SA600-G10 is a 1”
diffusion media, and carries the prestigious G10
mark. G10 is a European standard for test performance, and only qualified media can claim this
mark of distinction. It has a high dust holding
capacity for long life, and stops all particles of paint
damaging size from entering a paintbooth when
installed properly.

SAR-1 Panels for Air Intake

For downdrafts and prep stations. This filter provides the highest level of protection against paint
damaging particles available today. In addition to
its leading reputation in filtering ability, the SA600G10 is able to withstand high temperature applications, up to 140 degrees Celcius! This filter does
not discolor or break down in the heated booth
environment. Other leading media using traditional
tackifiers and PVC resins, produce a heavy discoloration and the media expands reducing the filtering ability.

The SAR-1 media is a premium choice for crossdraft requirements. The tackifier and heavily callendered exit side allow for excellent particle retention. The SAR-1 is a premium choice for crossdraft
filtration.

This product has a normal service life of 10 to 18
months, depending on outside air quality and
usage. The filter is available in bulk rolls or cut
pads for your convenience. Cut pads are cut in our
facility to your booth requirements.

SAR-1 Pad for Air Intake

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Models SAR1M-xxxxx

The metal support is made from 9 gauge galvanized steel, which will not rust. The support is
formed into a rectangular shape and contains two
crossbars for added stability.
When choosing the correct size, measure the metal
support. The metal support will be 3/8” under the
listed size. For instance, a 20x20 panel’s ring will
measure 19-5/8 x 19-5/8. Crossdraft booths will
have a series of housings that look like square or
rectangular holes in the booth doors. Panel filters
have extra media overlapping the metal support
which act as gasketing when placing the panel filter
inside the housing and create a tight seal to prevent
any air bypass around the filter.

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th

The first media layer is designed to catch large particles entering the booth. The second media layer
is designed to catch the smaller particles. 100% of
the fibers in the second layer are tackified to retain
trapped particles. The combination of small fiber
size and a callendered exit provide unsurpassed
R-1 filtration.

For use as an intake blanket on crossdraft booths.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Series ST55 Panel for Air Intake

Series 332 comes in 200 ft. rolls and in pads for
crossdraft and semi-downdraft booths. Series 332
is made from air-laid fiberglass forming a 2.5”
thickness and a thin polyester layer bonded to the
exit side for added efficiency.

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Models ST55R-xxxx and ST55L-xxxx-xx

Series 332 fibers are ideal for paint capture due to
their loose weave. The paint particles collide with
the fiberglass fibers and are removed from the
airstream, and the fine particulate is removed by
the polyester exit layer.

FP3-Paint Arrestor
FP3PA-xxxx

The first media layer is designed to catch large particles entering the booth. The second media layer
is designed to catch the smaller particles. The
downstream side of the second layer is treated with
a sticky non-migrating tackifier which holds trapped
particles inside the filter. The metal support is
made from 9 gauge galvanized steel, which will not
rust. The support is formed into a rectangular
shape and contains two crossbars for added stability.

If your downdraft booth uses a pit, measure the
width of the pit to find the appropriate roll, or check
our booth guide. To change the media, simply,
unwind the roll to the proper length, and cut a pad.

The SERIES ST55 PANEL, made in the USA, is an
economical choice for crossdraft booths. The
SERIES ST55 is made from two media pads. A
metal support is dielectrically heat sealed in
between the two media layers, providing support
and rigidity.

A grid is needed to hold the pad which is standard
in most booths, or are available through Flanders
customer service.

When choosing the correct size, measure the metal
support. The metal support will be 3/8” under the
listed size. For instance, a 20x20 panel’s ring will
measure 19-5/8 x 19-5/8.

Series 332 Paint Arrestor

fil

Models 332PA-xxxx

FP3 media combines three distinct layers of polyester fibers forming a funnel effect. The first layer
captures large particles. The second and third layers catch the finer particles.
By utilizing an open weave on the first layer, particles do not cause the filter to quickly clog up allowing large amounts of paint to be captured without
substantial increases in air pressure.
The pad sizes listed below are typical in crossdraft
and semi-downdraft booths. If converting from
Styrobaffle or Styrofoam, grids will be needed to
hold the pads in place. If your downdraft booth
uses a pit, measure the width of the pit to find the
appropriate roll, or check our booth guide.

Fiberglass with polyester for use as a paint arrestor
in all types of booth. Series 332 is our highest quality fiberglass media available. Made with 18 grams
of fiberglass per square foot, and a polyester exit
layer, the Series 332 is more efficient and holds
more paint than almost any other fiberglass products.

FP3 media is an excellent choice for exhaust media
in any booth. Use of this media will keep the booth
exhaust system cleaner when converting from
fiberglass, however some older booths do not work
well with the resistance levels.

Flanders - Foremost in Air Filtration
18

Corporate Headquarters, St. Petersburg, FL

Series 331Y PA

Series 330G is made from air-laid fiberglass forming a 2.5” thickness. The exit side has a skin backing for added efficiency.

Models 331Y-xxx

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Series 330G fibers are ideal for paint capture due to
their loose weave. The paint particles collide with
the fiberglass fibers and are removed from the
airstream.

Series 225T Cube
Models CUBx225Txxxxxx

22 gram Fiberglass Paint Arrestor for use in all
booth types. Series 331Y is a high quality fiberglass
media.
Made with 22 grams of fiberglass per
square foot, the Series 331Y is more efficient and
holds more paint than many other fiberglass products. It comes in 200 ft. rolls and is also available in
pads for crossdraft and semi-downdraft booths.

2-Ply Self Supportive Cube Filter for use as a paint
arrestor. 225T Cube filters are a single pocket
trapezoid cube filter. A 1” dual denier polyester
media is sewn into shape. The filter is then
attached to a 9 gauge wire for support when
installed in the filter housing.

Series 331Y is made from air-laid fiberglass forming a 2.5” thickness. The exit side has a skin backing for added efficiency.
Series 331Y fibers are ideal for paint capture due to
their loose weave. The paint particles collide with
the fiberglass fibers and are removed from the
airstream.

Series 330G PA

Models 330G-xxx

Due to their unique design, cube filters have a larger surface area than conventional pads. The
increase in surface area allows the filter to hold
more contaminants thereby increasing the life of
the filter.

325Tand 425T-Cubes
Models CUBx325Txxxxxx and CUBx425Txxxx

fil

15 gram Fiberglass Paint Arrestor for all booth
types. Series 330G is our economy grade fiberglass media. Made with 15 grams of fiberglass per
square foot, the Series 330G holds more paint than
other economy fiberglass media due to its skin exit
side.

Series 330G comes in 100 ft. rolls compared to
many of our competitors 200-300 ft. rolls. The fiberglass is also available in pads for crossdraft and
semi-downdraft booths.

Three and Four Stage Cube Filters for use as a
paint arrestor. Two products make up our premium
exhaust cube product line. They are the Series

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Andrea and PS125 Exhaust Filters
Models ANDREA and 125PAD-xxxx

The Series 425T has an added layer of media
applied to the downstream side of the filter.
Although the construction is the same as the Series
325T, the added layer of single denier polyester
fibers gives the Series 425T a 99% efficiency rating.

PS125-Bag

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The Series 325T is made from a polyester media
supported by a 9 gauge wire frame. The dual
denier media is used as an initial barrier, and a
tightly woven thin media is used as a final particle
barrier. This filter captures an average of 98% of
overspray in weight.

to the exhaust bags to reduce costs. Bag measurements are nominal in size. If a bag is 15.5” x
24.5” x 19.5”, the listed size is 16” x 25” x 20”.
Please note this difference when measuring your
exhaust bags.

325T, which is 98% efficient, and the Series 425T
which is 99% efficient. The exhaust cube filters
have a larger surface area than a conventional flat
pad. This increase in surface area reduces the
restriction to airflow, and increases the paint holding capacity of the filter. This means better airflow
and longer life.

The Andrea filter is a paper paint arrestor with a
unique design. Kraft paper is pleated into an accordion-like form with holes punched in the paper at
consistent intervals. A second layer of paper is
attached to the back with different hole placements.

Models 125BAG-xxxxxx

When air passes through the filter, it hits the wall of
the second kraft paper layer and is diverted through
the second hole. This air turbulence and laws of
motion cause the paint to collect on the paper and
cleaned air to pass through the filter.

Scrim-Back Polyester Media Bags for use as a secondary paint arrestor in selected booths.

fil

Each bag is hand sewn and attached to a 9 gauge
galvanized support frame, and includes a 1” header for easy placement in side access housings.
Special bags may require a wire support basket, no
header or frame, or loops at the end of each pocket for support.

The media is a 1” single denier polyester fiber with
a scrim backing. This media has little effect on the
airflow, and has a high dust holding capacity. The
unique pocket design increases the surface area of
the media. This increase in surface area will
increase the life of the filter, and reduce the pressure drop.

The PS125 Water Wash Pads are designed specifically for use in select Spraybake brand booths.
Certain models of Spraybake use a water wash
system as a secondary exhaust. This water wash
system requires special pads to be used to filter out
particulate in the system. The fiber has a reinforced
scrim backing on the downstream side to prevent
fiber breakoff or migration. The water wash pads
are also available in custom sizes.
*Our filters are not affiliated with SPRAYBAKE®. Use of the
registered SPRAYBAKE® name is for comparative purposes
only.

Series 225-Panel
Models 225RT-xxxx and 225LT-xxxxx-xx

2-ply Panel and Link Filter for use as a prefilter in
downdraft booths. The 2 ply panel filters are constructed using two layers of poly-synthetic fibers.
These layers are designed to capture large particles in the first layer and smaller particles throughout the second layer.
A 9 gauge wire frame with two cross pieces is
dielectrically heat sealed inside the filter for sup

If the exhaust bag is the same size as a booth’s
intake bags, it is common to rotate the intake bags

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

members bonded to the media on the air entering
and leaving sides for unsurpassed frame strength,
locking corners and positive media-to-frame seal
reduces the possibility of air bypass.

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port. The media overlaps the support, which provides a gasketing effect reducing air bypass around
the filter.

The filter is made from fully synthetic, high-loft and
reinforced media. It is continuously laminated to an
expanded metal grid on the air leaving side to provide pleat stability throughout the life of the filters
and prevent media flutter while in operation. The
unique v wedge allows for total media usage and
provides maximum air flow.

When measuring the correct filter for your booth,
first measure the entire filter track. This measurement should have a track height of 14-25” and a
length of 14-100”. The height of the 2 Ply Panel is
listed as a nominal size. For instance, if a filter ring
measures 15.5” x 19.5”, then the correct size is 16”
x 20”. There are hundreds of standard sizes available. Custom sizes are also available.

Model 40 Pleated

A tackifier is applied in between the last two layers
to stabilize any migrating particles and prevent the
discharge of particles from the filter. The graduated media design produces a superior dust holding
capacity that will outlast most filters on the market.
Panel filters are 100% moisture resistant and will
not warp or deteriorate in wet or humid conditions.
By utilizing one continuous panel in a filter track,
and its selvedged edge, a panel filter eliminates air
bypass so common among cardboard framed filters.

Series 225 Panel

Model 40 Standard Capacity Pleat
Models 80055.xxxxxx

Models 11255.xxxxxx

These are heavy duty synthetic filters for use as
prefilters in downdraft booths.HD Industrial Grade
filters are designed for use in any application where
disposable panel filters are recommended. They

fil

For use as a prefilter in downdraft booths. Model 40
Pleats are designed to operate in almost every type
of installation. Available in 1”, 2” and 4“ nominal
thicknesses, these filters have an average atmospheric dust spot efficiency range of 25-30% per
ASHRAE Standard 52.1 test methods. Model 40
Pleats offer greater efficiency and service life than
disposable filters, pad and frame systems, or metal
washable filters. The overall design of this product
makes these filters the accepted choice in applications requiring high performance and extended
service.

HD Poly-T/A

Filter frames are constructed from two pieces of
die-cut,
moisture-resistant
carrier
board.
Components”telescope” into one another and provide double-wall construction and a precision fit.
The frame includes diagonal and horizontal support

can be relied upon for superior performance since
they are specifically designed for heavy work-loads.
Both standard and special sizes are available.HD
Industrial Grade filters are designed with a onepiece moisture-resistant chipboard frame enclosing
progressive-density media. Standard frames are
nominal 1” thick (3/4” actual) and nominal 2“ thick
(1-5/8“ actual).

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

ance.
The standard offering of KKM filters includes six of
the most popular face sizes in 1” and 2” depths.
Special face sizes and 1/2” depth filters are also
available. For ease of installation, all filters are
undercut slightly on length, width and depth.

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The filter media consists of 100% high bulk polyester fibers that are thermo-bonded with a fire retardant res” Support grilles of expanded metal are
provided on both sides of the filter. The media pads
and support grilles are continuously glued to the
inside perimeter of the frame, resulting in exceptional strength and rigidity. This design virtually
eliminates the possibility of media sag within the
frame.

Precision Pak
Models PAPxxxSxxxx

Polyester Bulk Media Rolls and Pads

KKM Washable

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Models 51255.xxxxx

Washable permanent filter for use as a prefilter in
downdraft booths. The KKM permanent filter is a
heavy duty, washable, aluminum media, all metal
filter.

The KKM offers large filtering area, high dust holding capacity, uniform loading and low resistance to
airflow. It is recommended that the filter media be
coated with dust adhesive for optimum perform-

High efficiency bag filter for use as a prefilter in
downdraft booths and prep stations.
The Precision Pak ASHRAE bag use a fully synthetic media that provides an efficiency rating of 4555%. The pockets are hand sewn or ultrasonically
sealed and fastened to an all aluminum frame.
They are designed for specific booths and prep stations that can accommodate their special size and
performance properties. UL 900 Class 2 Listed.

For use as a prefilter in downdraft booths. Polyester
pads and rolls are made of a dual layer polyester
media with a dry tackifier. The filter is cut into various pad sizes from the roll and placed into a metal
holding frame (See Uniframe on page 79). The
1DT media is a 1“ thick filter, and the 2DT media is
a 2” thick filter. The media can be ordered in precut pads or bulk rolls, and can easily be trimmed
with scissors.

Models 1Txx for 1” and 2Txx for 2”

Precision Pak bags have a large amount of media
surface area. This decreases the pressure drop
and increases the capacity. These bags hold substantial amounts of dirt removed from the airstream.
Use of these bags will ensure a clean environment
throughout the intake stack and prolonged life of
the ceiling diffusion media.
Bag filters are sized nominally in their length and
width. If the booth track measures 19.5” x 19.5”,
then the correct bag listed is 20” x 20”. Bag filters
also have a special depth. The depth describes the
length of the pockets. This is an exact size and is
usually an even number. There are many other
sizes available, and custom sizes can be made to
order. There are also other efficiencies ranging
from 45% through 95%. For additional sizes, UL
Ratings or efficiencies, please contact customer
service.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

PS125-Bag

PS125-Cube, PS125-Sock

Models125BAG-xxxxxx

Models125SOCK-xxxx

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Scrim-Back polyester media bags as prefilter.
PS125 Bags are made from a single denier polyester media that contains a scrim backing for extra

rigidity. The PS125 Bags each contain a metal wire
support and a 1” channel frame for easy placement.

*Our filters are not affiliated with SPRAYBAKE®. Use of the
registered SPRAYBAKE® name is for comparative purposes
only.

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Prefilter bags have an ever-changing and diverse
selection of types and sizes. Call customer service
at any time to help with your selection.

PSeries 225T Cubes are also used as an exhaust
filter in several applications. The Spraybake Sock
filter is made from a 1” single denier polyester
media. The filter has a draw string sewn at the top,
and a support loop at the bottom corner. The filter
fastens to the ductwork by the drawstring. After
fastening the support loop, the filter remains open
and stable.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

FP319A

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Two-stage and Three-stage Paint Systems
Paintbooth Filtration

Pads: FP319AxxxxPAD, Ring Panels: FP319A2020PRK,
Cubes: FP319Axxxx , Bags: FP319Axxxxxxxx

Two-Stage

The Flanders FP319A-Chromate Recovery System
is offered in both two-stage and three-stage configurations for aerospace overspray painting environments.

The two-stage version of the Flanders system utilizes a proprietary synthetic media pad in combination with a proprietary synthetic media bag type filter. The two-stage system performed as shown
below in testing.

2. Deft 44GN72 green water-reducible coating (A) base
+ (B) activator - With a conventional air gun operating at 45 psi, with spray feed rate of 110 gr/min @
120 fpm.: Initial pressure drop was .10” w.g.
Running to final pressure drop at .74” w.g., average
removal efficiency was measured at 98.91% efficiency, with 469 grams holding capacity on the first
stage and 6327 grams holding capacity on the second stage.

The EPA Test Method 319 is a testing protocol in
which potassium chloride and oleic acid are substituted for chromate paint. These chemical substances attempt to simulate dry and wet overspray
characteristics of the chromate paint. This testing
protocol verifies that an air filtration system (two or
three-stage) has met minimum efficiency requirements, under laboratory conditions, utilizing potassium chloride and oleic acid.

1 Dexter (A) 454-5 + (B) X-395 fuel tank coating mixyellow - With a conventional air gun operating at 45
psi, with spray feed rate of 105 gr/min @ 120 fpm.:
Initial pressure drop was .18” w.g. running to final
pressure drop at .72” w.g., average removal efficiency was measured at 99.78% efficiency, with
279 grams holding capacity on the first stage and
2600 grams holding capacity on the second stage.

The FP319A complies with EPA (Environmental
Protection Agency) Test Method 319 as it applies to
the National Emissions Standards for Hazardous
Air Pollutants (NESHAP). Reference 63 Fed. Reg.
59 (March 27, 1998) and 40 C.F.R. 9, 63.

FP319A Chromate Recovery System

The Flanders FP319A two and three-stage systems
have been qualified by independent laboratory on
specific chromate paints. These tests are performed in controlled environments to simulate the
“real world” painting environment.

Two-Stage Test Method 319 Data

84.4%
94.6%
97.3%
85.6%
94.4%
97.1%

Three-Stage Test Method 319 Data
KCL

0.59
0.87
2.14
0.37
0.94
1.88

0.73
1.16
2.85
0.47
1.41
2.83

OLEIC

>10%
>50%
>90%
>10%
>50%
>90%

OLEIC

2.14 - 2.85 m
4.25 - 5.55 m
7.66 - 9.46 m
1.88 - 2.83 m
3.69 - 4.71 m
5.11 - 6.29 m

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KCL

NESHAP*

m
m
m
m
m
m

97.3%
98.8%
99.6%
89.2%
96.8%
99.0%

Two-stage

NESHAP*
>75%
>85%
>95%
>65%
>80%
>95%

Three-stage

*National Emissions Standards for Hazardous
Air Pollutant minimums, as defined in Test
Method 319 protocol.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Three-Stage

1
2
3
Avg

1. Dexter (A) 454-5 + (B) X-395 fuel tank coating mix-yellow - With a conventional air gun
operating at 45 psi, with spray feed rate of
105 gr/min @ 120 fpm, Initial pressure drop
was .15” w.g. Running to final pressure drop
at .70” w.g., average removal efficiency was
measured at 99.97% efficiency, with 470
grams dust holding capacity on the first
stage, 981 grams holding capacity on the
second stage and 1140 grams holding
capacity on the third stage.

The three-stage system performed as
shown below in testing.

Filter ID:
FP319A (three-stage)
Descriptions:
6 Pocket synthetic, yellow 15” deep
Test Type:
Fractional Efficiency
Velocity:
120 fpm
Test Aerosol:
Oleic Acid, neutralized

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3
Avg

The three-stage version of this system utilizes the same filters as the two-stage, plus
a proprietary internally supported Polyester
Panel filter and a proprietary pocketed cube
filter.

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Filter ID:
FP319A (three-stage)
Descriptions:
6 Pocket synthetic, yellow 15” deep
Test Type:
Fractional Efficiency
Velocity:
120 fpm
Test Aerosol:
KCI, neutralized

3. Courtaulds yellow fuel tank coating (A)
513X390 base + (B) 910X624 activator - With
a conventional air gun operating at 45 psi,
with spray feed rate of 105 gr/min @ 120
fpm, initial pressure drop was .23” w.g.
Running to final pressure drop at .82” w.g.,
average removal efficiency was measured
at 99.35% efficiency, with 284 grams holding capacity on the first stage and 1366
grams holding capacity on the second
stage.

2. Deft 44GN72 green water-reducible coating
(A) base + (B) activator - With a conventional air gun operating at 45 psi, with spray
feed rate of 104 gr/min @ 120 fpm: Initial
pressure drop was .15” w.g.Running to final
pressure drop at .70” w.g., average removal
efficiency was measured at 99.97% efficiency, with 470 grams dust holding capacity on the first stage, 981 grams holding
capacity on the second stage and 1140
grams holding capacity on the third stage.

Filter ID:
FP319A (two-stage)
Descriptions:
Poly Panel, 6-Pkt. bag
Test Type:
Fractional Efficiency
Velocity:
120 fpm
Test Aerosol:
KCI, neutralized

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3. Courtaulds yellow fuel tank coating (A)
513X390 base + (B) 910X624 activator - With
a conventional air gun operating at 45 psi,
with spray feed rate of 93 gr/min @ 120
fpm: Initial pressure drop was .15” w.g.
Running to final pressure drop at .79” w.g.,
average removal efficiency was measured
at 99.91% efficiency, with 570 grams dust
holding capacity on the first stage, 821
grams holding capacity on the second
stage and 354 grams holding capacity on
the third stage.

Filter ID:
FP319A (two-stage)
Descriptions:
Poly Panel, 6-Pkt. bag
Test Type:
Fractional Efficiency
Velocity:
120 fpm
Test Aerosol:
Oleic Acid, neutralized

1
2
3
Avg

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Cut-to-Fit

Kwik Kuts

These are 15”x24” pads of filter media that can be
easily cut to fit any window or wall mounted room
air conditioner. They are offered in the same spun
glass, foam and aluminum media described above.
Also offered are 1/2” Permaire (see column at
right) and plastic-backed foam.

Flanders Service Rolls air filtration media are manufactured in selected widths, prepared in roll
lengths that make manageable roll sizes. In most
cases, a single cut across the roll will produce a
ready-to-install filter pad.

(Models KKxxx)

Service Rolls

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Kwik Kuts, Hammock, Permaire and
Service Rolls and Pads

The following media are offered as service rolls:

Spun Glass: (Models SGxxxxKK) This is a rigid, nominal
3/8” thick, dry spun glass. It is typically used to
make rigid pads for use in room unit air conditioners. It is designed for use without a frame. Since it
is untreated, it will not harm the plastic frequently
used in the construction of room units.

Hammock Rolls and Pads
Models HRxxxx

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Foam: (Models FRxxxxx) A rugged polyurethane foam
that is designed for use in room unit air conditioners
and in pad-holding frames. It is washable and will
withstand repeated cleaning with mild soap and
water. Foam service rolls are available in 1/4”, 1/2”,
1” and 2” media thicknesses. They are washable for
repeat use.

Aluminum: (Models EAxx) The aluminum service roll is
an expanded aluminum mesh of the type used in
room unit air conditioners. It is a nominal 1/4” thick
dry filter media that requires the addition of a dust
adhesive for effective filtration.

Flanders hammock rolls are available in nominal 1”
spun glass, 2” spun glass, and 1” polyester synthetic fiber media. Performance data on all
Flanders hammock media is available upon
request.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Cut-to-Fit

Permaire filters are passive electrostatic type products. Air running over the maze of fibers creates an
electrostatic charge to catch and hold airborne contaminants. Dust particles may become charged naturally, and if so, they are held by strong electrostatic forces to the oppositely charged fiber with which
they come into contact. The smaller a particle or
fiber, the relatively stronger the electrostatic
charges will be attained. Dirt loads throughout the
filter’s depth and therefore it will hold a lot more
dust than other filters before requiring changing or
cleaning.

Permaire Rolls and Pads

install. It is totally self supporting. With nothing
more than Permaire and a hefty pair of scissors or
a razor knife, you can replace almost any size 1/2”,
1” or 2” framed panel filter.

Typically, these are for Lennox type furnaces.
(Lennox is a brand name. It is used here for system
identification only.) Hammock rolls are 20 foot rolls
of media cut in various widths. In most cases, a single cut across the roll will produce a ready-to-use
filter pad. Flanders hammock rolls are packaged in
a handy carton that can be used as a dispenser.
Media used in all Flanders hammock rolls are UL
Class 2 fire rated. The 1” spun glass is also available in pre-cut hammock pads, individually packaged in plastic

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Kwik Kuts, Hammock, Permaire and
Service Rolls and Pads

Models HHxxxx

Permaire is an ideal product for filter service professionals. With a roll of Permaire on your truck,
you can replace almost any size panel filter. It’s a
perfect answer to “odd” size filters. A 10x32”special”
is as close as a pair of scissors...and the same low
cost as a 16x20 standard that you cut from the
same roll.

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Permaire is a unique type of air filtration media that
has evolved from a natural organic fiber media to a
new completely synthetic, self-supporting and completely washable media. It has all the benefits of
organic media but has a longer service life, better
structural integrity as well as being completely odor
free. It is made of synthetic fibers and coated with a
special resin, then baked together at a high temperature. The result of this process is a tough and
springy, thoroughly bonded, nearly rigid air filtration
media.

Describing Permaire as merely an air filtration
medium is telling only half of the story. Due to its
natural rigidity, a pad of Permaire cut to the proper
dimensions is actually a complete filter ready to

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Bulk Media and Pads

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Cut -To-Fit Room Air Conditioner,
Furnace and Central Air Filters

Bulk media rolls are offered in selected slit widths
with roll lengths determined by manufacturing
processes. Pre-cut pads, as the name implies, are
pads of filtration media cut to standard filter face
sizes or to your desired custom sizes.

Polyester Synthetic Fiber
Polyester Synthetic Fiber (PSF) media is extremely
resilient and will withstand direct moisture. In many
cases, a psf media is the ideal alternative to spun
glass. It makes an excellent prefilter for high efficiency filters and offers a high arrestance and dust
holding capacity.
PSF 5DT, 1DT, 2DT (Models 5Txx, 1Txx and 2Txx) Dry,
untreated psf media in nominal 1/2 “, 1 “ and 2 “
thickness for a wide range of filtration applications.
White and blue with blue on the air exit side.

Spun glass is a rugged industry standard, known
for low resistance while providing excellent
arrestance and high dust holding capacity. They are
designed to trap dirt throughout their thickness. A
resinous bonding agent in the media increases
rigidity and resistance to compression so the filter
will not collapse in the airstream. Flashpoint is 325
degrees Fahrenheit on the treated adhesive.

3/8” A/C Media (Models ACxx) Nominal 3/8 “ untreated
(no adhesive) blue on white spun glass. Makes rigid
pads for use in room air conditioning units.

Flanders offers a wide range of top quality air filtration media available in bulk rolls and pads.
Considering the unique characteristics of each
offering, the user can get maximum value for filter
dollar spent with relation to the intended use.

4” “Railroad” Glass Nominal 4 “ spun glass for air filtration in railroad diesel engines. Manufactured
according to customer specifications.

Wide selection of media types

Spun Glass

7/8” Blue Production Glass (Models GMxx) Nominal 7/8”
adhesive-treated spun glass. For residential or light
industrial and commercial air filtration. Commonly
used for 1” depth disposable panel air filter production and for pad and frame systems.

Blue on White Industrial Glass (Models Gxxx) Nominal 1”
and 2” adhesive treated spun glass. For industrial
and commercial air filtration with fairly heavy dirt
loads. Commonly used for pad and frame systems
and hammock rolls. Tinted blue on the air entering
side.

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Series 330G PA Green Paint Arrestor Glass (Models 330Gxxx) Model 330 Green glass is a 2.5” economical
dry spun glass media for prep station and paint
spraybooth applications.

Pre-T (Models PTxx) Pre-T is an extremely rugged psf
designed for repeated cleaning by washing or vacuuming. Dry, untreated. Nominal 1/2 “ thickness
only. Red and purple with purple on the air exit side.
PS125 (Models PS125-xx) Nominal 1 “ untreated psf
which is reinforced with a scrim backing on the
downstream side.
SAR-1 (Models SAR1M-xxxxx) Nominal 1/2” or use as
an intake blanket on crossdraft spraybooths.

SA600-G10 (Models SA600-xxx) Nominal 1” diffusion
media for downdraft spraybooths.
PSF Series 225, 325, 425 (Models ENTRY225T-xx,
ENTRY325T-xx, ENTRY425T-xx) Series 225 is nominal 1
“ dual denier tackified media; 325 is nominal 1-1/2 “
three denier tackified and 425 is nominal 1-1/2 “
four denier tackified.

Series 331Y PA Yellow Paint Arrestor Glass (Models 331Yxxx) Model 331 is a heavy duty version of dry spun
glass for prep station and paint spraybooth applications.

ST55 (Models PRELK55Gxx) Nominal 1/2 “ tackified psf.
Light green and white with green on the air exit
side.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Auto Rolls

Scrim-back spun glass
(Models AESx, BLCSxx, CBSx, FSx, CRSx, CSx, AMSx, TSxx, LRSx)

Skin-back spun glass

ModelsAEx, BLCx, CBx, Fxx, CRx, Cx, AMx, Tx, LRxx)

A nominal 2” thickness progressive density spun glass
treated with dust-catching adhesive. The roll is backed on
the downstream side with a spun glass “skin”.

Economy spun glass

(Models AEECx, BLECxx, CBECx, FECx, CRECx, CECxx, AMECx, TECx,
LRECx)

A nominal 2” thickness spun glass with a very light spun
glass skin on the downstream side which is reinforced with
a scrim mesh. Density of the scrim is approximately 1
square per square inch. Media weight is about two-thirds
that of the standard scrim-back glass.

Polyester

(Models AEPx, BLCPxx, CBPx, FPx, CRPUx, CPUxx, AMPx, TPx, LRPxx)

fil

A nominal 1/2” thickness dry, non-woven polyester synthetic fiber medium, reinforced on the downstream side
with a scrim backing. Scrim density is approximately 3
grids per square inch.

Treated Polyester

(Models AEPTx, BLCPTxx, CBTx, FPTx, CRPTx, CPTxx, AMPTx, TPTx,
LRPTx, LAPTxx)

Same medium as the polyester described above, but treated with a dust-catching adhesive.

A nominal 2” thickness progressive density spun glass
treated with dust-catching adhesive. The roll is backed on
the downstream side with a scrim mesh. Density of the
scrim is approximately 3 squares per square inch.

L - Designed to fit commercial
“FulFlo” and Mine Safety
Appliance machines. Core consists of 3” ID fiberboard tube with
drive pin 2-1/2” from one end.
F - Designed to fit Farr “Roll
Kleen”. Core consists of 2-1/8” ID
fiberboard tube. No drive pin,
discs or cups.

Flanders automatic roll replacements are furnished wound
on spools or cores, ready for installation without modification or adaptors. A core selection guide is printed on the
back of this sheet. Six-foot-long kraft paper leaders and
trailers are secured to the ends of every roll. Each roll contains 65 linear feet of filtering media in selected widths.
Rolls are wrapped in heavy plastic and packed in cartons
for shipment. The following media types are available:

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Automatic Roll Filter Replacement

AM - Designed to fit Airmaze “RollA-Maze”. Core consists of 1-7/8”
ID fiberboard tube with metal cup
recessed 5/8” each end. A rectangular slot, 1-1/2 x 3/4”, is stamped
in each cup.

T - Designed to fit Trane Company
“Roll Filter”. Core consists of 27/16” ID fiberboard tube with
metal cup in each end, recessed
1-1/2” A 1-1/2” square is stamped
in each cup.
CR - Designed to fit Carrier series
31NA and 31NC. Core is 27/167”
BLC - Designed to fit BLC
Industries. Consists of a 1-1/2”
metal pipe with 2 drive pins that
are 1-3/8” from core end, and with
11” end plates.
AE - Designed to fit American Air
Filter “Roll-O-Matic”. Core consists of 3/4” ID metal pipe with
metal end plates approximately
11” diameter attached on each
end.
CB - Designed to fit Cambridge
“Autoroll”. Core consists of 3/4”
metal pipe, no end plates unless
specified on order.
C - Designed to fit Continental
“Conomanual” or “Conomatic”.
Core consists of 3” ID fiberboard
tube with a drive pin 2-1/2” from
one end.

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Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Pre Pleat 40
Extended Surface Pleated Filters

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Economy Capacity: 84355.xxxxxx Standard capacity:80055.xxxxxx
High Capacity: 80255.xxxxxx

Pre Pleat 40 filters are available in a wide range of
sizes and will fit most commercial and industrial
installations with little or no system modification.
Fasteners are available to adapt the filter to existing filter banks.

Installation Considerations
Pre Pleat 40 pleated filters are suitable as primary
filters and can be installed in Type 9 Holding
Frames, K-Trac Framing Modules, Surepleat Side
Access Housings and similar existing hardware.
They may be used as prefilters for Precision Pak,
PrecisionCell and Rigid-Air filters in these framing
systems and in Sureseal Side Access Housings.

These filters are suitable for variable air volume
systems. Operating face velocity ranges are from
0 to 500 fpm for 1” and 2” filters, and from 0 to 625
fpm for 4” filters. Standard and High Capacity
designs are offered.

The inherent strength of the filter allows for easy
changeout as it will not collapse, warp, or bend in
normal service.

Flanders Pre Pleat 40 extended surface pleated filters are designed to operate in most every type of
installation. Available in 1”, 2”, and 4” nominal
thickness, these filters have an average atmospheric dust spot efficiency range of 25-30% per
ASHRAE Standard 52.1 test methods. Pre Pleat
40 filters offer greater efficiency and service life
than disposable filters, pad and frame systems, or
metal washable filters. The overall design of this
product makes these filters the accepted choice in
applications requiring high performance and
extended service.

General

Pre Pleat 40 filters are UL 900 Class 2 listed but are
available with UL Class 1 listing.

Versatility

Media: High-loft, non-woven cotton/synthetic blend
Media Support: Diamond-shaped expanded metal
Pleat Design: V Pleat
Frame: Moisture-resistant carrier board

Important Features

Most heating, air conditioning, or ventilating systems can be upgraded with the use of Pre Pleat 40
filters in place of existing flat panel types.

Physical Data

• Media maximizing v-pleat design

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• Expanded metal grid prevents media
flutter while in operation
• Diagonal and horizontal support members provide frame strength

• Filter media pack is sealed to eliminate air
bypass

• Average ASHRAE efficiency is 25-30%
• Average arrestance is 90%-92%

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Construction
Filter frames are constructed from two
pieces of die-cut, moisture-resistant
carrier board. Components “telescope” into one another and provide
double-wall construction and a precision fit. The frame includes diagonal
and horizontal support members
bonded to the media on the air entering and leaving sides for unsurpassed
frame strength. Locking corners and
positive media-to-frame seal reduces
the possibility of air bypass.

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V-Pleat
Design

Expanded
Metal
Pleat Backing

Flanders’ unique v-pleat wedge pleat
allows for total media usage and provides maximum air flow and dust holding capacity.

2-piece die-cut frame

Diagonal grid
supports for
maximum
strength

Efficient
High-Loft
Media

The filter media is a high-loft, reinforced, non-woven cotton/synthetic
blend. It is continuously laminated to
an expanded metal grid on the air
leaving side to provide pleat stability
throughout the life of the filters and
prevent media flutter while in operation.

Double
Wall
Construction

Principles of Operation

Flanders’ v-pleat design insures that the greatest media area is exposed to the air flow to promote uniform
dust loading. Competitive filters cannot maintain this rigid shape and tend to flatten out, using only a portion of the media. This v-pleat design creates an air exit area (B) equal to the air entering area (A), which
minimizes end losses and reduces pressure drop.

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Radial wedge pleats have unequal air exit (D) and air entering (C) areas, which cause higher resistance and
uneven use of media.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Performance Data
Capacities and Dimensions
Standard Capacity
cfm

cfm

Media Wt.
Area Each
sq. ft. (lbs.)

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

10
20
20
24
20
25
20
20
25
20
24
25
24
25
24

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

210
417
500
600
583
729
625
667
834
834
900
945
1000
1042
1200

0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15

347
694
833
1000
972
1215
1042
1110
1390
1390
1500
1575
1667
1735
2000

0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35

1.1
2.2
2.7
3.5
3.1
4
3.3
3.6
4.6
4.6
4.8
5
5.3
5.5
6.4

10
12
12
14
14
15
16
16
18
18
20
20
20
24
25

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

20
20
24
20
25
20
20
25
24
25
20
24
25
24
25

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

417
500
600
583
729
625
667
834
900
938
834
1000
1042
1200
1300

0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12
0.12

694
833
1000
972
1215
1042
1110
1390
1500
1563
1390
1667
1735
2000
2170

0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27

4.5
5.3
5.8
6.2
7.8
6.7
6.6
8.3
9.6
10
8.3
10.7
10.3
12.3
13.3

Depth

Nominal Size
H x W x D (in.)
x
x
x
x
x
x
x
x
x
x

24
20
25
24
20
24
25
24
29
30

x
x
x
x
x
x
x
x
x
x

4
4
4
4
4
4
4
4
4
4

fil

300 fpm

cfm

600
667
834
900
834
1000
1042
1200
1500
1680

0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10

12
16
16
18
20
20
20
24
25
28

cfm

0.2
0.3
0.4
0.5
0.5
0.6
0.6
0.6
0.7
0.7
0.7
0.7
0.8
0.8
0.9

210
417
500
600
583
729
625
667
834
834
900
945
1000
1042
1200

0.6
0.7
0.8
0.8
1.0
0.8
0.9
1.1
1.2
1.3
1.1
1.3
1.3
1.5
1.6

417
500
600
583
729
625
667
834
900
938
834
1000
1042
1200
1300

Media
Area
(sq. ft)

0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30
0.30

11.6
11.8
15.0
17.4
15.0
19.3
20.2
22.3
27.2
31.3

625 fpm

cfm

1250
1390
1735
1500
1735
1667
2170
2500
3100
3500

500 fpm

PD
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.11

Standard Capacity

300 fpm

10
10
12
12
14
14
15
16
16
20
18
18
20
20
24

or
e

500 fpm

Media Wt.
Area Each
sq. ft. (lbs.)

cfm

347
694
833
1000
972
1215
1042
1110
1390
1390
1500
1575
1667
1735
2000

0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33
0.33

1.6
3.2
3.8
4.5
4.5
5.3
4.8
4.8
6.1
6.1
6.9
7.2
7.7
7.6
8.9

0.2
0.4
0.5
0.6
0.6
0.7
0.7
0.7
0.8
0.8
0.9
0.9
1.0
1.0
1.1

694
833
1000
972
1215
1042
1110
1390
1500
1563
1390
1667
1735
2000
2170

0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25

6.4
7.7
8.7
8.9
11.2
9.6
10
12.4
13.8
14.4
12.4
15.3
15.5
17.8
19.2

0.8
0.9
1.0
1.0
1.2
1.0
1.1
1.3
1.5
1.6
1.3
1.6
1.6
1.8
1.9

300 fpm

High Capacity

Nominal Size
HxWxD
(in.)

Nomina
l Depth
(in.)

High Capacity
Weight
Each
(lbs.)
1.5
1.7
2.0
2.1
2.0
2.3
2.3
2.5
3.1
3.5

300 fpm

cfm
600
667
834
900
834
1000
1042
1200
1500
1680

PD
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09
0.09

625 fpm

cfm

1250
1390
1735
1500
1735
1667
2170
2500
3100
3500

0.28
0.28
0.28
0.28
0.28
0.28
0.28
0.28
0.28
0.28

Media Weight
Area Each
(sq. ft) (lbs.)
14
15.5
19.6
21.9
19.6
24.3
24
28
34
39

1.7
1.8
2.2
2.3
2.2
2.5
2.5
3.0
3.6
4.2

Notes:

1. PD represents clean pressure drop in inches w.g. The recommended final pressure drop for all models is 1.0
in. w.g. System design may dictate a lower change-out point.
2. Actual filter face size for 12 x 24 and 24 x 24 filters is 5/8 in. under on height and width. Actual face size on
all other sizes is 1/2 in. under on height and width.
3. Actual filter depth is 1/8 in.under for all nominal 1 in. deep filters. Actual filter depth is 1/4 in. under for all nominal 2 in. and 4 in. deep filters.
4. For capacities other than those shown, ratio the face velocities.
5. Performance tolerances conform to Section 7.4 of ARI Standard 850.
6. Performance values stated may be averages typical of the products listed. Contact factory for actual performance test reports on specific products.

The Pre Pleat Series of Pleated Air filters

or
e

Pre Pleat Class 1 air filters are
designed for applications
where a UL Class 1 fire rated
filter is required and metal
frames are unsuitable.

Pre Pleat HT air filters are
designed for applications
where the temperatures
reach up to 400ºF.

62R high efficiency pleated air
filters contain an electrostatically
charged filtration media which
has a higher dust holding capacity.

1.0 General

Pre Pleat HV air filters are
designed to operate in
high velocity and turbulent
air applications where
standard pleated filters
tend to fail.

Guide Specifications
upstream and downstream sides, and shall have
locking corners.
3.0 Performance

1.2 Filter sizes and capacities shall be as scheduled
on the drawings.

3.1 Initial and final resistances shall not exceed the
scheduled values.

1.3 Filters shall be UL 900 Class 1 or 2 listed.

3.2 Media area must equal or exceed that of the specified filter.

2.0 Filter Construction

3.3 The average atmospheric dust spot efficiency
shall be 25-30% as determined by ASHRAE
Standard 52.1 test methods.

fil

1.1 Medium efficiency filters shall be Pre Pleat 40
extended surface pleated filters as manufactured
by Flanders..

2.1 Filters shall be constructed of reinforced, nonwoven cotton/synthetic blend media laminated to
an expanded metal grid on the air leaving side
and formed into v-configuration pleats.
2.2 Frame shall be moisture-resistant board with diagonal and horizontal support members on the

3.4 The manufacturer shall guarantee performance as
stated in the literature within tolerances as outlined in Section 7.4 of ARI Standard 850.

Pre Pleat HV
High Velocity and Gas Turbine Pleat

or
e

Models 85455.xxxxxx

General

The Pre Pleat HV pleated filter from Flanders is
designed to operate in high velocity and turbulent air
applications where standard pleated filters have a
tendency to fail.

Construction

A heavy-duty die-cut moisture resistant frame encloses the media pack. The media is manufactured of
100% electrostatically charged synthetic fibers that
attract and hold airborne particulate contaminants.
The media is bonded to a zinc coated, 1-1/4” mesh
expanded metal backing which is substantially heavier than standard metal backing. These features
result in a more efficient, durable and reliable product.

They are ideal for gas turbine and rotary machinery
equipment or any area requiring a pleated filter to
operate under demanding use.

Important Features

fil

• Moisture resistant die-cut frame

• Heavy gauge metal backing for exceptional
strength
• 1”, 2”, 4” depths

• Special sizes available

• MERV 8 rating, per ASHRAE Standard 52.2

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2

210
417
500
600
583
729
625
667
834
834
900
945
1000
1042
1200
417

0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.13

347
694
833
1000
972
1215
1042
1110
1390
1390
1500
1575
1667
1735
2000
694

0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.38
0.29

1.6
3.2
3.8
4.5
4.5
5.3
4.8
4.8
6.1
6.1
6.9
7.2
7.7
7.6
8.9
6.4

12
12
14
14
15
16
16
18
18
20
20
20
24
25

x
x
x
x
x
x
x
x
x
x
x
x
x
x

20
24
20
25
20
20
25
24
25
20
24
25
24
25

x
x
x
x
x
x
x
x
x
x
x
x
x
x

2
2
2
2
2
2
2
2
2
2
2
2
2
2

500
600
583
729
625
667
834
900
938
834
1000
1042
1200
1300

0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.13

833
1000
972
1215
1042
1110
1390
1500
1563
1390
1667
1735
2000
2170

0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29
0.29

7.7
8.7
8.9
11.2
9.6
10.0
12.4
13.8
14.4
12.4
15.3
15.5
17.8
19.2

x
x
x
x
x
x
x
x
x
x

12
16
16
18
20
20
20
24
25
28

300 fpm

24
20
25
24
20
24
25
24
29
30

x
x
x
x
x
x
x
x
x
x

4
4
4
4
4
4
4
4
4
4

cfm

600
667
834
900
834
1000
1042
1200
1500
1680

10
20
20
24
20
25
20
20
25
20
24
25
24
25
24
20

cfm

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

Nominal Size
H x W x D (inch)

Depth

10
10
12
12
14
14
15
16
16
20
18
18
20
20
24
10

cfm

Media
Area
sq. ft.

500 fpm

300 fpm

or
e

Nominal Size
HxWxD
(inch)

Nominal
Depth
(inch)

PD
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10

625 fpm

cfm

1250
1390
1735
1500
1735
1667
2170
2500
3100
3500

0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35
0.35

Media
Area
(sq. ft)
14.0
15.5
19.6
21.9
19.6
24.3
24.0
28.0
34.0
39.0

Guide Specifications

fil

1.0 General

Performance values stated may be averages typical of the products listed.
Contact factory for actual performance test reports on specific products.

3.0 Performance
3.1 Initial and final resistance shall not exceed the
scheduled values.

1.2 Filter sizes and capacities shall be as scheduled
on the drawings.

3.2 Media area must be equal to that of the specified
filter.

1.1 High velocity Pre Pleat HV extended surface
pleated filter as manufactured by Flanders.

2.0 Filter Construction

2.1 Filter media shall be manufactured of 100% electrostatically charged synthetic fibers and bonded
to a corrosion-resistant expanded metal backing.
2.2 The frame shall be moisture resistant
board with diagonal and horizontal support members on the upstream and downstream sides.

3.3 The minimum efficiency shall be a MERV 8 rating
per ASHRAE Standard 52.2 and 50% dust spot
efficiency per ASHRAE Standard 52.1.
3.4 The manufacturer shall guarantee performance
as stated in the literature within tolerances as outlined in Section 7.4 of ARI Standard 850.

Pre Pleat 62R
High Efficiency Pleated Filters

or
e

Standard Capacity: 85655.xxxxxx
High Capacity: 85755.xxxxxx

Minimum Efficiency By Particle Size
100%

90%

Filtration for IAQ
Flanders Pre Pleat 62R pleated panel air filter was
specifically designed to improve indoor air quality
through a new level of particulate filtration. The filter takes its name from the ASHRAE Standard 62
which addresses indoor air quality. The Pre Pleat
62R is indeed state of the art.

70%
60%
50%
40%
30%

Fractional Efficiency %

80%

20%
10%

Electrostatically Charged Media

hv
.40
.30
.20
.10
0
0

1000

fil

• MERV 8 per ASHRAE Standard 52.2
• 1 in., 2 in. or 4 in. depths
• All standard sizes plus custom sizes
• Standard and high capacity designs

• UL Class 2 listed

Average Pleat

.50

Important Features

Rate of Air Flow vs Initial Resistance

The Pre Pleat 62R is more efficient when compared
to standard pleated filters and has a high dust holding capacity that does not sacrifice airflow. Initial
resistance of a 2 in. deep filter is just 0.3 in. w.g. at
500 fpm. Dust holding capacity of a 24x24x2 in.
high capacity filter is 181 grams at 1 in. w.g. final
resistance.

1
Particle Diameter (Microns)

62R Pleat

Resistance (Inches w.g.)

The Pre Pleat 62R features a 100% synthetic electrostatically charged filtration media, which actively
attracts and holds airborne contaminants. The filter
media is bonded to a corrosion resistant expanded
metal backing. This combination is then folded into
an accordian pleat arrangement and sealed within
a moisture resistant frame.

0%
0.1

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL 33713

1500

Air Flow - CFM

2000

2500

Pre Pleat 62RM11

NEW

or
e

Standard Capacity: 85655.xxxxxxM11
High Capacity: 85755.xxxxxxM11

(Merv 11 (60-65% per Ashrae 52.1-1992)

Pre Pleat 62RM11

Ultra High Efficiency Pleated Filters

re Pleat 62RM11 pleated panel filter enables
a significant upgrade in collection efficiency
over existing MERV 8 products at the same
resistance levels. From 30-35% to 60-65%
average per Ashrae 52.1-1992 average
dust spot efficiency at nearly the same
pricing levels.
ation ultra-high performance bi-component
synthetic media contains mechanically engineered tri-lobal fibers with inhomogenous domains
of positive and negative Electret charges within the
bi-component fibers to equal an ultra-high performance product.

Gradient

media

Enhanced fibers: Mechanically and electrostatically enhanced fibers are precisely structured into a
progressive density gradient structure to enhance
airflow throughput with less resistance while providing high dust holding capacity and ultra-high efficiency during operational life.

Bi-component media: Our next-gener-

structure:

Airflow resistance of a High Capacity PrePleat 62R
M11 is .30" wg @ 2000 CFM (500 FPM) Standard
Capacity is .34" wg @ 2000 CFM .

Efficiency:
1.3 to 1.6 microns

63% removal efficiency

7-10 microns

90% removal efficiency

• Upgrade existing rooftop and secular systems by up to 300% in efficiency to remove
incoming contaminants not previously
removed.

Proprietary
"Engineered Gradient Media Structure" enables
larger incoming contaminants to be trapped in the
pre-filter layer thus allowing the highly charged secondary layer to attract and hold smaller particulate,
thereby increasing the life of more expensive final
filters downstream.

Resistance:

High efficiency at low pressure drop: This propri-

fil

etary media combined with Flanders’ unique VPleat manufacturing design equals the highest performance pleat available on the market today. The
proprietary PrePleat 62RM11 can provide an initial
efficiency of MERV 11, (60-65%) at a resistance of
.30" wg on the high capacity model. This equals
the same resistance level of our Pre-Pleat 40 62R
Merv 8 Pleat.

• Upgrade existing prefilter plenums with
the 62RM11 Pleat to increase the life of your
more expensive final filters downstream.

• Building owners and occupants will be
significantly better protected from a
bioaerosol hazard than with conventional
filters.

No competitor in the marketplace can match these
performance levels which are substantiated with
independent testing. Flanders is the first in the
marketplace with this new proprietary product.

• Available by special ordering in HighVelocity design. Contact Factory for pricing

Flanders - Foremost in Air Filtration
.

Corporate Headquarters, St. Petersburg, FL

Electrostatically
charged synthetic
filtering media

Filter pack sealed in
frame at every point
of contact.

or
e

Telescoping frame
gives double perimeter thickness

Corosion resistant heavy
metal backing

Diagonal face strips
for extra strength

High efficiency and
arrestance at low
pressure drop

V-wedge pleats for
full media usage

UL Class II

PrePleat
62RM11
PrePleat
62R

PrePleat
40

1.0 General

Guide Specifications

fil

1.1 Air filters shall be Model Pre Pleat 62RM11 panel
filers, as manufactured by Flanders.
2.0 Filter Construction

Each filter shall consist of an electrostatically
charged synthetic only media, with corrosionresistant expanded metal backing and moisture
resistant enclosing frame. The filter shall be 1”, 2”
or 4” nominal depth.The grid shall be 100% bonded to the media on the air exiting side to eliminate
media vibration and pullaway.

2.1

2.2 The grid shall be formed to provide a uniform Vwedge shaped pleat with the open area on the air
exiting side for maximum utilization of the media
and low airflow resistance. The filter shall be classified for flammability by Underwriters
Laboratories, Standard 900 as Class 2.
3.0 Performance
3.1 The filter shall have a Minimum Efficiency
Reporting Value of 11 by ASHRAE Standard 52.2.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Pre Pleat Class 1
UL 900 Class 1 Pleated Filter

or
e

Standard Capacity: 85855.xxxxxx
High Capacity: 85955.xxxxxx

Construction

This pleated air filter is designed for applications
where a UL Class 1 fire rated filter is required and
metal frame filters are unsuitable because of disposal problems. The Pre Pleat Class 1 pleated air
filter has been tested by Underwriters Laboratories,
Incorporated and found to meet the stringent performance characteristics of a Class 1 air filter for
flammability, as outlined in Standard 900. Class 1
air filter units are described as "Those that, when
clean, do not contribute fuel when attacked by
flame and emit only negligible amounts of smoke.”

The filter consists of a nominal 50% dust spot efficiency micro-fine fiberglass filtration media that has
been bonded to a corrosion-resistant expanded
metal backing, and then pleated into either standard or high capacity packs. Each pack is encased
and sealed within a die-cut frame which is manufactured of special mineral-filled board to resist
flammability.

hv
Std. Cap.
Resistance
@ 500 fpm
.64
.64
.64
.64
.64
.64
.64

High Cap.
Resistance
@ 300 fpm
.30
.30
.30
.30
.30
.30
.30

High Cap.
Resistance
@ 500 fpm
.50
.50
.50
.50
.50
.50
.50

Important Features

St. Cap.
Resistance
@ 300 fpm
.36
.36
.36
.36
.36
.36
.36

12x24x2
16x20x2
16x25x2
20x20x2
20x24x2
20x25x2
24x24x2

cfm
@ 500 fpm
1000
1111
1389
1329
1667
1736
2000

Pre Pleat Class 1 pleated air filters are offered in
two inch depth in all of the most popular face sizes.

cfm
@300 fpm
600
667
833
833
1000
1041
1200

General

• UL 900 Class 1 for flammability

fil

• Easily disposable

• Offered in all standard face sizes,
2” depth
• High lofted glass pleated media

• Nominal 50% ASHRAE efficiency

• MERV 8

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

or
e

Rate of Air Flow vs Initial Resistance

Arrestance vs. Dust Fed
100%
90%

1.25

80%

1.00
0.75
0.50

70%
60%
50%
40%
30%

Arrestance (%)

Resistance (Inches w.g.)

1.50

20%

0.25

10%
0%

1000

1500

2000

2500

Air Flow - CFM

100

1.75

Resistance (Inches w.g.)

90%
80%

60%
50%
40%
30%
20%
10%

1.25

Resistance vs. Dust Fed

70%

1.50

Efficiency vs. Dust Fed
100%

Dust Spot Efficiency

Dust Fed (grams)

1.00
0.75
0.50
0.25
0.00

0%
0

100

Dust Fed (grams)

Performance values stated may be averages typical of the products listed.
Contact factory for actual performance test reports on specific products.

Guide Specifications

1.0 General

1.1 Medium efficiency UL Class 1 fire rated pleated
filters shall be Pre Pleat Class 1 as manufactured
by Flanders.

2.3 The die-cut frame shall be flame-resistant, mineral-filled board to meet a UL Class 1 fire rating.
3.0 Performance
3.1 Initial and final resistance shall not exceed the
final values.

2.0 Filter Construction

3.2 Media must meet or exceed the ratings that of the
specified filter.

2.1 Filter media shall be manufactured of a high lofted micro-fine media with a minimum efficiency of
50% per ASHRAE Standard 52.1

3.3 The manufacturer shall guarantee performance
as stated in the literature within tolerances as
outlined in Section 7.4 of ARI Standard 850.

fil

1.2 Filter sizes and capacities shall be scheduled on
the drawings.

2.2 A corrosion-resistant expanded metal wire grid
shall be bonded to the media to maintain pleat
integrity.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Pre Pleat HT
High Temperature Pleated Filters

or
e

Standard Capacity: 84555.xxxxxx
High Capacity: 84655.xxxxxx

Up to 400oF

resistant metal face screen on the downstream side
to increase pack rigidity while preventing blowouts.

Flanders Pre Pleat HT filters are designed for
increased air filtration efficiencies in an operating
environment where temperatures reach 400
degrees Fahrenheit Typical examples include air
intakes for drying ovens or high temperature baking
applications.

Construction

Each pack is encased within a 24 gage corrosionresistant metal frame with an expanded corrosion-

Frame: 24 gage corrosion-resistant steel
Media:

50% Efficient micro-fine fiberglass

Face Screen:
steel

St. Cap.
Resistance
@ 300 fpm
.36
.36
.36
.36
.36
.36
.36

Pleat Design: V-wedge Pleat
Expanded metal corrosion-resistant

Std. Cap.
Resistance
@ 500 fpm
.64
.64
.64
.64
.64
.64
.64

High Cap.
Resistance
@ 300 fpm
.30
.30
.30
.30
.30
.30
.30

High Cap.
Resistance
@ 500 fpm
.50
.50
.50
.50
.50
.50
.50

12x24x2
16x20x2
16x25x2
20x20x2
20x24x2
20x25x2
24x24x2

cfm
@ 500 fpm
1000
1111
1389
1329
1667
1736
2000

cfm
@300 fpm
600
667
833
833
1000
1041
1200

Physical Data

The Pre Pleat HT high temperature pleated air filter
consists of a nominal 50% dust spot efficiency
micro-fine fiberglass filtration media that has been
bonded to corrosion-resistant expanded metal
backing, then pleated into either standard or high
capacity packs.

Flanders Pre Pleat HTpleated air filters are offered
in two inch depths in all of the most popular face
sizes. They have been tested by Underwriters
Laboratories, Incorporated and found to meet the
stringent performance characteristics of a Class 1
air filter for flammability as outlined in Standard
900.

Important Features

fil

• Resists temperatures up to 400º F
• Nominal 50% ASHRAE efficiency
• Rugged metal construction

• UL 900 Class 1 Fire Rated

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Rate of Air Flow vs Initial Resistance
90%

1.25

80%

Arrestance (%)

1.00
0.75
0.50

70%
60%
50%
40%
30%
20%

0.25

10%

Resistance (Inches w.g.)

or
e

Arrestance vs. Dust Fed
100%

1.50

1000

1500

2000

2500

Air Flow - CFM

100

1.75

Resistance (Inches w.g.)

1.25
1.00

0.50
0.25

1.25
1.00
0.75

0.75

1.50

Resistance vs. Dust Fed

Rate of Air Flow vs Initial Resistance
1.50

Resistance (Inches w.g.)

Dust Fed (grams)

0.50
0.25
0.00

1000

1500

2000

2500

Air Flow - CFM

100

Dust Fed (grams)

Performance values stated may be averages typical of the products listed.
Contact factory for actual performance test reports on specific products.

Guide Specifications

1.0 General

1.1 High Temperature pleated filters shall be Pre
Pleat HT as manufactured by Flanders.

1.3 Filters shall be UL Class 1 listed and be able to
operate up to 400 degrees Fahrenheit.

3.0 Performance

2.0 Filter Construction

3.1 Initial and final resistance shall not exceed the
final values.

fil

1.2 Filter sizes and capacities shall be scheduled on
the drawings.

2.3 The filter pack shall be enclosed within a corrosion-resistant frame and furnished with an
expanded metal facescreen on the downstream,
air leaving side.

2.1 Filter media shall be manufactured of a high lofted micro-fine media with a minimum efficiency of
50% per ASHRAE Standard 52.1
2.2 An expanded metal wire grid shall be bonded to
the media to maintain pleat integrity.

3.2 Media efficiency and content must meet or
exceed the ratings of the specified filter.
3.3 The manufacturer shall guarantee performance
as stated in the literature within tolerances as outlined in Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

E35

or
e

Pleated Panel Filters
Models E35-xxxxx

Installation Considerations

Flanders E35 extended surface pleated filters are
designed to operate in most installations. Available
in 1”, 2”, and 4” nominal thickness, these filters
have an average atmospheric dust spot efficiency
range of 25-30% per ASHRAE Standard 52.1 test
methods. E35 filters offer greater efficiency and
service life than disposable filters, pad and frame
systems, or metal washable filters. The overall
design of this product makes E35 filters the accepted choice in applications requiring high performance and extended service.

E35 pleated filters are suitable as primary filters
and can be installed in Type 9 Holding Frames, KTrack Framing Modules, Surepleat Side Access
Housings and similar existing hardware. They may
be used as prefilters for Flanders Precision Pak,
PrecisionCell and Rigid-Air filters in these framing
systems and in Sureseal Side Access Housings.

Versatility

E35 filter frames are constructed from moisture
resistant chipboard. Perforated steel support grilles
on the upstream and downstream sides provide
extra rigidity and strength. The entire unit is sealed
to insure a positive media-to-frame bond, eliminating the possibility of air bypass. The filter media is
a high loft reinforced non-woven cotton/synthetic
blend. It is continuously laminated to an expanded
metal grid on the air leaving side to provide pleat
stability throughout the life of the filter and to prevent media flutter while in operation. The E35 V
wedge pleat allows for total media usage and provides maximum airflow and dust holding capacity.

Most heating, air conditioning, or ventilating systems can be upgraded with the use of E35 filters in
place of existing flat panel types. The inherent
strength of the filter allows for easy changeout as it
will not collapse, warp, or bend in normal service.

Construction

These filters are suitable for variable air volume
systems. Operating face velocity ranges are from 0
to 500 fpm for 1” and 2” filters, and from 0 to 625
fpm for 4” filters. Each filter contains 11 pleats per
lineal foot. E35 filters are UL 900 Class 2 listed.

General

E35 filters are available in a wide range of sizes
and will fit most commercial and industrial installations with little or no system modification.
Fasteners are available to adapt the E35 filter to
existing filter banks.

Important Features

fil

• V-wedge pleats minimize end losses
and reduce pressure drop.
• Expanded metal grid prevents media flutter
while in operation.

• Perforated steel support grilles strengthen
the frame.

• Filter media pack is sealed to eliminate air
bypass.
• Average ASHRAE efficiency is 25-30%.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

CAPACITIES AND DIMENSIONS
Nominal Size
HxWxD (inch)

cfm

Media
Area
(sq. ft)

E35-10201
E35-12201
E35-12241
E35-14201
E35-14251
E35-15201
E35-16201
E35-16251
E35-18241
E35-18251
E35-20201
E35-20241
E35-20251
E35-24241
E35-10202
E35-12202
E35-12242
E35-14202
E35-14252
E35-15202
E35-16202
E35-16252
E35-18252
E35-20202
E35-20252
E35-24242
E35-12244
E35-16204
E35-16254
E35-20204
E35-20254
E35-24244
E35-25294
E35-28304

10x20x1
12x20x1
12x24x1
14x20x1
14x25x1
15x20x1
16x20x1
16x25x1
18x24x1
18x25x1
20x20x1
20x24x1
20x25x1
24x24x1
10x20x2
12x20x2
12x24x2
14x20x2
14x25x2
15x20x2
16x20x2
16x25x2
18x25x2
20x20x2
20x25x2
24x24x2
12x24x4
16x20x4
16x25x4
20x20x4
20x25x4
24x24x4
25x29x4
28x30x4

420
500
600
580
730
625
667
834
900
940
834
1000
1042
1200
420
500
600
580
730
625
667
834
940
834
1042
1200
600
667
834
834
1042
1200
1510
1750

.15
.15
.15
.15
.15
.15
.15
.15
.15
.15
.15
.15
.15
.12
.12
.12
.12
.12
.12
.12
.12
.12
.12
.12
.12
.12
.10
.10
.10
.10
.10
.10
.10
.10

695
834
1000
975
1215
1040
1110
1390
1500
1565
1390
1667
1735
2000
695
834
1000
975
1215
1040
1110
1390
1565
1390
1735
2000
1250
1390
1735
1735
2170
2500
2520
2920

.35
.35
.35
.35
.35
.35
.35
.35
.35
.35
.35
.35
.27
.35
.27
.27
.27
.27
.27
.27
.27
.27
.27
.27
.27
.27
.30
.30
.30
.30
.30
.30
.30
.30

2.4
2.9
3.5
3.4
4.3
3.7
3.6
4.6
5.3
5.5
4.6
5.8
5.5
6.4
4.0
4.8
5.8
5.6
7.1
6.0
6.6
8.3
9.1
8.3
10.3
12.3
11.6
11.8
15.0
15.0
20.2
22.3
27.7
32.1

Weight
Each (lbs.)

500 fpm

375 fpm

or
e

(inch)

Nominal
Depth

.6
.6
.5
.6
.8
.6
.6
.7
.8
.8
.7
.8
.8
.9
.7
.8
.8
.9
.9
.9
.9
1.1
1.3
1.1
1.3
1.5
1.5
1.7
2.0
2.0
2.3
2.5
4.0
6.0

1.0 General

PD represents clean pressure drop in inches w.g. The recommended final pressure drop for all models is 1.0 inch
w.g. System design may dictate a lower change-out point.
Performance values stated may be averages typical of the products listed. Contact factory for actual performance
test reports on specific products.

Guide Specifications

1.2 Filters shall be UL 900 Class 2 listed.

3.1 Initial and final resistances shall not exceed the
scheduled values.

2.0 Filter Construction

3.2 Media area must equal or exceed that of the
specified filter.

fil

3.0 Performance

2.1 Filters shall be constructed of reinforced,
non-woven cotton/synthetic blend media laminated to an expanded metal grid on the air leaving
side and formed into V-wedge pleats.
2.2 Frames shall be moisture-resistant chipboard
with perforated steel support grilles on the

upstream and downstream sides.

1.1 Medium efficiency pleated filters shall be E35 a s
manufactured by Flanders.

3.3 The average efficiency shall be as determined by
the ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in its literature within tolerances as outlined in Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Superflow-V

or
e

Extended Surface Minipleat Filters
DOP: 95%: SFV D95xxxx ASHRAE 98% SFV98xxxx
ASHRAE 95% SFV95xxxx 85% SF85xxxx 75% SFV75xxxx

Construction

Lowest Pressure Drop

The ratio of media area to nominal face area of
Superflow-V filters is an extremely high 48:1, resulting in a much longer service life than most any filter
of comparable efficiency and depth. Longer service
life means material and labor cost savings and less
disruption of systems caused by filter change-out
shutdowns. High dust holding capacity is a key benefit of a filter with increased media area.

Physical Data

Media: Moisture-resistant microfine fiberglass
Filter Pack: Minipleat panels
Media Support: Adhesive
Top and Bottom Panels: Flame-retardant plastic
Vertical Supports: Aerodynamic extruded vertical supports
Operating limits: 160 °F and 100% RH continuous duty
Actual Header Size: Nominal size less 5/8” (e.g. a nominal 24” x 24” filter is actually 23-3/8” x 23-3/8”)
Actual Depth: 11-1/2”

Superflow-V minipleat filters have an exceptionally
low clean pressure drop unmatched by most any filter of the same efficiency. This affords low fan energy costs during much of the life of the filter system.

Important Features

Longer Service Life

Superflow-V filters are constructed of multiple minipleat panels bonded to flame-retardant plastic panels on top and bottom to make an unusually strong
assembly that is both corrosion and moisture resistant. Aerodynamic extruded vertical supports minimize air entry turbulence. Superflow-V filters are
totally rigid making them ideal for variable air volume (VAV) systems, as well as applications downstream of supply fans.

In addition, they are the filters of choice for packaged air conditioning systems that do not have the
fan capacity of larger central systems.

Superflow-V extended surface area low pressure
drop minipleat filters are designed for use in most
commercial and industrial HVAC systems where
medium to high efficiency filtration is required.
Superflow-V filters are available in average efficiency ranges: 65%, 85%, 95% and 98% per ASHRAE
Standard 52.1 test methods and 95% DOP. They
may be operated at face velocities from 0 to 750
fpm. Superflow-V filters are UL 900 Class 2 listed.

General

• Lowest clean pressure drop for energy savings
and applicability to small fan systems

fil

• Longer service life because of a very high ratio of
media to nominal face area
• Aerodynamic vertical supports minimize air entry
turbulence

• Minipleat panels provide rigidity for VAV systems
and resistance to turbulent air flow

• May be operated from 0 to 750 fpm face velocity
in either air flow direction
• Moisture resistant for humid air applications

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Model
Number

Nominal Size
HxWxD
Inches

250 FPM

375 FPM

CFM

500 FPM

CFM

625 FPM

CFM

95% DOP
95% DOP
95% DOP

SFVD-95A12
SFVD-95B12
SFVD-95C12

24 x 24 x 12
20 x 24 x 12
12 x 24 x 12

1000
800
500

0.28
0.28
0.28

1500
1200
750

0.55 2000 0.75
0.55 1600 0.75
0.55 1000 0.75

2500 0.80
2000 0.80
1250 0.80

98%
98%
98%

SFV-98A12
SFV-98B12
SFV-98C12

24 x 24 x 12
20 x 24 x 12
12 x 24 x 12

1000
800
500

0.25
0.25
0.25

1500
1200
750

0.45 2000 0.60
0.45 1600 0.60
0.45 1000 0.60

2500
2000
1250

95%
95%
95%

SFV-95A12
SFV-95B12
SFV-95C12

24 x 24 x 12
20 x 24 x 12
12 x 24 x 12

1000
800
500

0.14
0.14
0.14

1500
1200
750

0.27 2000 0.36
0.27 1600 0.36
0.27 1000 0.36

2500 0.51
2000 0.51
1250 0.51

85%
85%
85%

SFV-85A12
SFV-85B12
SFV-85C12

24 x 24 x 12
20 x 24 x 12
12 x 24 x 12

1000
800
500

0.07
0.07
0.07

1500
1200
750

0.18 2000 0.27
0.18 1600 0.27
0.18 1000 0.27

65%
65%
65%

SFV-65A12
SFV-65B12
SFV-65C12

24 x 24 x 12
20 x 24 x 12
12 x 24 x12

1000
800
500

0.05
0.05
0.05

1500
1200
750

0.15 2000 0.25
0.15 1600 0.25
0.15 1000 0.25

750 FPM

Media Wt.
Area Each
(Sq.Ft) (Lbs.)

or
e

Efficiency
%

CFM

*
*
*

196
162
98

18
14
9

*
*
*

196
162
98

17
13
8

3000 0.64
2400 0.64
1500 0.64

196
162
98

17
13
8

2500 0.40
2000 0.40
1250 0.40

3000
2400
1500

0.6
0.6
0.6

196
162
98

17
13
8

2500 0.38
2000 0.38
1250 0.38

3000 0.52
2400 0.52
1500 0.52

196
162
98

17
13
8

1.0
1.0
1.0

Installation Considerations

1. PD represents clean pressure drop in inches w.g.
The recommended final pressure drop for all models
is 2.0 inch w.g. Maximum final pressure drop is 3.2
inch w.g.
2. Operation down to zero air flow is satisfactory for all
models
3. Efficiency is average and is based on ASHRAE
Standard 52.1 test methods for 65, 85, 95 and 98%
filters. Performance values stated may be averages

Superflow-V filters may be installed in Flanders Type 9
Holding Frames, K-Trac Filter Framing Modules,
Sureseal Side Access Housings or in similar existing
hardware. Type 9 Holding Frames are riveted
together to form a filter bank. K-Track Filter
Framing Modules are especially suitable for medium
to large built-up filter banks. Smaller systems and
systems with minimum upstream access space are
best served using Sureseal Side Access Housings.
Gasketed Headers are Standard
Superflow-V filters are furnished with a peripheral header on the air entering side and with foam gaskets on
the “H” dimension for the 24 x 24 model and “W”
dimension on the 12 x 24 and 20 x 24 models.

Performance Data Notes:

typical of the products listed. Contact factory for actual
performance test reports on specific products.

4. Performance tolerances conform to section 7.4 of
ARI Standard 850.
5. Actual filter header is 5/16 inch under on height an
width. Actual depth is 11-1/2 inch

1.0 General

Guide Specifications

fil

1.1 Medium and high efficiency extended surface low
pressure drop minipleat filters shall be SuperflowV models as manufactured by Flanders.
1.2 Filter sizes, efficiencies and capacities shall be as
scheduled on the drawings.

2.0 Filter Construction

2.1 Filters shall consist of multiple minipleat panels
bonded to flame-retardant plastic panels on top
and bottom and encased in a corrosion-resistant
steel frame.

3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 Media area must equal or exceed that of the specified filter.
3.3 The average efficiency shall be as determined by
ASHRAE Standard 52.1 test methods.
3.4 Filters shall be UL 900 Class 2 listed.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Rigid-Air
Fiberglass or Synthetic Media Rigid Filter

They feature your selection of media backed with
expanded metal and pleated. The pleats are held in
place by rigid pleat separators, now available in
either plastic or metal styles. Rigid-Air is available
in two media types: lofted fiberglass and micro-fine
synthetic with average efficiency ranges of 50-55%,
60-65%, 80-85% and 90-95% per ASHRAE
Standard 52.1 test methods.

Physical Data

Frame: 24 ga. corrosion-resistant steel
Media: Lofted fiberglass or micro-fine synthetic
Media Supports: Expanded metal grid with metal or
plastic pleat separator
Face Grid: Horizontal and diagonal metal supports

These filters are especially suitable for variable air
volume systems. Operating face velocity ranges
are from 0 to 375 fpm for 6” deep filters, and from 0
to 675 fpm for 12” deep filters. Two frame styles are
available: a single header model and a box type
without header. Rigid-Air filters are UL 900 Class 2
listed. Optional Class 1 listed are available with
metal inserts and fiberglass media.

The headered version should be selected for use
with the hardware listed above. If the filter is to be
installed so that it protrudes upstream of the Type 9
Holding Frame, the box style filter is required.

Rigid-Air extended media surface rigid filters are
designed for use in most commercial or industrial
HVAC systems where medium to high efficiency filtration is required.

to form a bank and may be installed for upstream or
downstream service. K-Track Filter Framing
Modules are especially suitable for medium to large
built-up filter banks. Smaller systems and systems
with minimum upstream access space are best
served using Sureseal Side Access Housings.

General

or
e

Synthetic Media PRP**Sxxxxx, PRP**SxxxxM
Glass Media: PRP**Gxxxx, PRP**GxxxxM
(** insert 55, 65, 85 or 95 for percent ASHRAE efficiency

Installation Considerations

Operating Limits: 180° F 100% RH %

Actual Header or Box Filter Face Size: Nominal size less
5/8” (e.g., a nominal 24” x 24” filter is actually 23 3/8”
x 23 3/8”)
Actual Depth: 5-7/8” or 11-1/2”

Rigid-Air filters may be installed in Type 9 Holding
Frames, K-Trac Filter Framing Modules, Sureseal
Side Access Housings or in similar existing hardware. Type 9 Holding Frames are riveted together

Header: 13/16” wide 26 ga. corrosion-resistant steel

Important Features

fil

• Rugged corrosion-resistant steel casing minimizes damage during shipping and handling.

NEW

• Lofted fiberglass micro-fine or synthetic media is
held in position by upstream and downstream
plastic or (NEW!) metal pleat supports.

• Units are available with or without header.

• Filters are completely rigid.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Rigid-Air Box Type Filters

60-65%
50-55%
90-95%
6

80-85%
60-65%
50-55%

or
e

80-85%

1000
500
1000
500
1000
500
1000
500
1000
500
1000
500
1000
500
100
500

.24 1500 .44 2000 .66 2500 .90
.20
.13
.10
.45
.35
.25

750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

.34
.24
.20
.72

.13

1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

1250
.51 2500 .70
1250
.36 2500 .49
1250
.30 2500 .41
1250
1.00
Note 3
.84
Note 3
.60
Note 3
.35 2500 .45
1250

24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6

250 fpm 375 fpm 500 fpm 625 fpm Media Weight
Area Each
cfm PD cfm PD cfm PD cfm PD (sq. ft.) (lbs.)

90-95%

Nominal Size
H x W x D (inch)

.60
.42

Nominal
Depth Efficiency
(inch)

.23

58
28
58
28
58
28
58
28
29
14
29
14
29
14
29
14

19
11
19
11
19
11
19
11
10
5
10
5
10
5
10
5

fil

Rigid-Air
is now
available
with new
ALL METAL
pleat
supports.

Notes:
1. PD represents clean pressure drop in inches w.g. Recommended final pressure drop for all models is 1.5 inches w.g.
2. Operation down to zero airflow is satisfactory for all models.
3. Consult factory before operating at these velocities.
4. Efficiency is average and is based on ASHRAE Standard 52.1 test methods.
5. Performance tolerances conform to Section 7.4 of ARI Standard 850.
6. Actual filter face size is 5/8” under on height and width. Actual filter depth is 5-7/8” or 11-1/2”
7. Performance values stated may be averages typical of the products listed. Contact factory for actual performance test
reports on specific products.

Rigid-Air Box Type Filter With Metal Pleat Separators

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Rigid-Air Filters with Header

60-65%
50-55%
90-95%
80-85%
6
60-65%
50-55%

1000
500
1000
500
1000
500
1000
500
1000
500
1000
500
1000
500
1000
500

cfm

.36 1500
750
.25 1500
750
.15 1500
750
.11 1500
750
.50 1500
750
.42 1500
750
.27 1500
750
.11 1500
750

500 cfm
cfm

.60 2000
1000
.44 2000
1000
.27 2000
1000
.22 2000
1000
.81 2000
1000
.68 2000
1000
.45 2000
1000
.24 2000
1000

.87
.65
.41

Media Weight
Area Each
cfm PD (sq. ft.) (lbs.)
2500 1.16
50
20
1250
12
22
2500 .85
20
50
1250
22
12
2500 .56
20
50
1250
22
12
2500 .48
20
50
1250
12
22
Note 3
11
25
6
11
Note 3
25
11
6
11
Note 3
11
25
6
11
2500 .56
11
25
1250
6
11
625 fpm

or
e

cfm

375 cfm

80-85%

24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6

250 cfm

.35

1.14

90-95%

Nominal Size
H x W x D (inch)

Nominal
Depth Efficiency
(inch)

.96
.64
.39

fil

Notes:
1. PD represents clean pressure drop in inches w.g. Recommended final pressure drop for all models is 1.5 inches w.g.
2. Operation down to zero airflow is satisfactory for all models.
3. Consult factory before operating at these velocities.
4. Efficiency is average and is based on ASHRAE Standard 52.1 test methods.
5. Performance tolerances conform to Section 7.4 of ARI Standard 850.
6. Actual filter header face size is 5/8” under on height and width. Actual depth is 5-7/8” or 11-1/2”
7. Performance values stated may be averages typical of the products listed. Contact factory for actual performance test
reports on specific products.

Rigid-Air Filter with Header and Plastic Pleat Separators

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Hospital Applications

Rigid-Air filters may be used wherever job requirements and available space will accommodate 6” or
12” deep filters.

Rigid-Air filters may be used on the downstream
side of the supply fan in hospitals if they are far
enough from the fan so that the high fan discharge
velocity will not affect them. Rigid-Air rigid filters
can withstand adverse air flow conditions better
than bag filters and are the preferred selection for
these applications.

VAV Systems

Rigid-Air headered filters installed in Flanders KTrac Filter Framing Modules or Sureseal Side
Access Housings require gaskets on opposite
header sides to prevent air bypass.
To specify headered version Rigid-Air filters with
gasketed headers, add suffix “S” or “H” to the
model number. Example:
Model Number - S: Gaskets are on the sides parallel to the pleats.
Model Number - H: Gaskets are on the sides perpendicular to the pleats.

Filter banks should be sized so that the maximum
rated flow at design conditions falls within the published recommended velocities. Rigid-Air filters
may be applied at any capacity between zero flow
and cataloged capacities.

Gasketed Headers

Rigid-Air filters should be installed with pleats vertical wherever possible. It is permissible to install
24” x 12” face size cartridges with pleats horizontal
if necessary to meet the size requirements of the
filter bank.

Rigid-Air filters should be selected using 24” x 24”
and 24” x 12” face sizes. This allows for 12” increments in height and width of the filter bank and
insures that replacement cartridges will be readily
available.

or
e

Application Guidelines

Guide Specifications

1.0 General

1.1 Medium and high efficiency self-supporting filters
shall be Rigid-Air lofted fiberglass or micro-fine
synthetic media rigid filters as manufactured by
Flanders.

1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.
2.0 Filter Construction

fil

2.1 Filters shall be constructed of lofted micro-fine
fiberglass or micro-fine synthetic media laminated to a non-woven backing, bonded to an
expanded metal wire grid and pleated to form the
filter pack

2.2 The filter pack shall be strengthened on the air
entering and air exiting sides with horizontal and
diagonal metal support members.

2.3 The enclosing frame shall be assembled in a
rigid manner and shall incorporate a header on

the air entering side if required by the application.
2.4 The filter pack shall be sealed into a 24 ga.
corrosion-resistant steel casing with metal or
plastic pleat separators on the upstream and
downstream sides to maintain pleat configuration.
3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 Media area must equal or exceed that of the
specified filter.
3.3 The average efficiency shall be as determined by
the ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in its literature within tolerances as outlined is Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

PrecisionCell
Extended Media Separator Type Rigid Filters

or
e

UL Class 1, Std & Hi Cap: 8*055.xxxxxxx1, 87*55.xxxxxx1
UL Class 2, Std & Hi Cap: 8*055.xxxxxx, 87*55.xxxxxx
(Insert 6 for 65%, 8 for 85%, 9 for 95% ASHRAE Efficiency)

These filters are suitable for variable air volume systems. Operating face velocity ranges are from 0 to
625 FPM for 12” deep filters. Three styles are available: box, single and double header. PrecisionCell
filters are UL 900 Class 1 listed.

Installation Considerations

Construction Options

PrecisionCell extended media separator type rigid
filters are designed for use in most commercial or
industrial HVAC systems where medium to high efficiency filtration is required. PrecisionCell filters are
available in average efficiency ranges of 60-65%,
80-85% and 90-95% per ASHRAE Standard 52.1
test methods and are available in standard and high
capacity versions.

The single header version should be selected for
use with hardware framing systems and side access
housings. If the filter is installed so that it protrudes
upstream of the Type 9 Holding Frame, the double
header filter is required.

PrecisionCell filters are designed for temperatures
up to 350 degrees Fahrenheit For high temperature
or gas turbine models, see PrecisionCell GT and HT
bulletins.

General

Physical Data

Frame: 24 ga. corrosion-resistant steel
Media: Moisture-resistant micro-fine fiberglass
Separators: Hemmed corrugated aluminum
Headers: 13/16 “ wide corrosion-resistant steel

PrecisionCell rigid filters may be installed in
Flanders Type 9 Holding Frames, K-Trac Filter
Framing Modules, Sureseal Side Access Housings,
or in similar existing hardware.

Operating Limits: 100% RH and 350º F
Actual Face: Nominal size less 5/8”
Actual Depth: 5-7/8” or 11-1/2”

Type 9 Holding Frames are riveted together to form
a bank and may be installed for upstream or downstream service. K-Trac Filter Framing Modules are
especially suitable for medium to large built-up filter
banks. Smaller systems and systems with minimum
upstream access space are best served using
Sureseal Side Access Housings.

Important Features

fil

• Rugged galvanized steel casing minimizes damage during shipping and
handling

• Corrugated aluminum separators stabilize the moisture-resistant media pack
and prevent damage in applications
downstream of the supply fan.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Performance Data
PrecisionCell Standard Capacity Filters With Single or Double Header

80-85%
60-65%
90-95%
80-85%

60-65%

375 fpm

500 fpm

625 fpm

cfm PD cfm PD cfm PD cfm PD
1000
500
1000
500
1000
500
1000
500
1000
500
1000
500

.25 1500
750
.20 1500
750
.15 1500
750
.45 1500
750
1500
.35
750
.15 1500
750

.40 2000 .68
1000
.35 2000 .57
1000
.20 2000 .42
1000
.65
Note 3

2500 .78
1250
2500 .67
1250
2500 .52
1250

Media
Area
(sq. ft.)

Weight
Each
(lbs.)

125
57
105
47
105
47
60
27
50
22
50
22

18
9
18
9
18
9
11
8
11
8
11
8

24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 12
24 x 12 x 12
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6
24 x 24 x 6
24 x 12 x 6

250 fpm

Note 3

90-95%

Nominal Size
HxWxD
(inch)

.55

Note 3

.35

Note 3

Nominal
Depth
Efficiency
(inch)

or
e

Capacities and Dimensions

Additional Standard Size PrecisionCell Filters
Capacities and Dimensions

Media Area (sq. ft.) Weight Each (lbs.)
PD
Nominal Size
Nominal
HxWxD
60-65%
60-65%
Capacity (cfm)
60-65% 80-85% 90-95% 80-85% 90-95% 80-85% 90-95%
(inch)
90
108
16
18
.50
.60
.30
25 x 20 x 12
1750
70
84
14
17
.60
.30
.50
25 x 16 x 12
1400
86
103
16
18
.60
.50
.30
24 x 20 x 12
1700
76
91
14
17
.60
.50
.30
24 x 18 x 12
1600
70
84
14
17
.60
.50
.30
20 x 20 x 12
1400
54
65
14
15
.50
.60
.30
20 x 16 x 12
1100
43
52
10
10
.45
.35
.15
25 x 20 x 6
875
33
40
10
9
.15
.35
.45
25 x 16 x 6
700
41
49
10
10
.45
.15
.35
24 x 20 x 6
850
36
44
10
9
.35
.45
.15
24 x 18 x 6
800
33
40
10
10
.45
.15
.35
20 x 20 x 6
700
26
31
10
9
.35
.45
.15
20 x 16 x 6
550

Nominal Depth
(inch)

fil

1. PD represents clean pressure drop in inches w.g. The recommended final pressure drop
for all models is 1.5 inches w.g.
2. Operation down to zero airflow is satisfactory for all models.
3. Consult factory before operating at these velocities.
4. Efficiency average is based on ASHRAE Standard 52.1 test methods. Performance values
stated may be averages typical of the products listed. Contact factory for actual performance test reports on specific products.
5. Performance tolerances conform to Section 7.4 of ARI Standard 850
6. Actual face size is 5/8” under on height and width. Actual filter depth is 5-7/8” or 11-1/2”

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

or
e
st
ac

PrecisionCell Single Header filters are recommended for through-the-frame applications. Install by loading the filters through the
Type 9 frame until the header comes into
contact with the gasket on the frame. Secure
in place with Model P fasteners.

fil

PrecisionCell Single Header filters are ideally suited for upstream or downstream installation in KTrac Filter Modules. Insert the horizontal sides of
the header in the gasketed 1” secondary track of
the framing system.

PrecisionCell Single Header filters are designed for
use in Sureseal Side Access Filter Housings. The
Sureseal unit provides space for prefilters to prolong the life of the filters. Install by sliding the header of the filter into the gasketed 1” secondary filter
track.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

VAV Systems

PrecisionCell filters may be used wherever job
requirements dictate totally rigid filters and available
space will allow only minimal inline depth.

Filter banks should be sized so that the maximum
rated flow at design conditions falls within the published recommended velocities. PrecisionCell filters
may be applied at any capacity between zero flow
and cataloged capacities.

Prefilters

Gasketed Headers
PrecisionCell headered filters installed in Flanders
K-Trac Filter Framing Modules or Sureseal Side
Access Housings require gaskets on opposite header sides to prevent air bypass.
To specify filters with gasketed headers, add suffix
“S” to “H” to the model number as follows:
Model Number - S: Gaskets are on the sides parallel to the separators.
Model Number - H: Gaskets are on the sides perpendicular to the separators.

We recommend that Prepleat 40 pleated panel filters or Precision Pak bag filters be used as prefilters
for PrecisionCell installations. Where there must be
long intervals between filter changes, we recommend using 65% ASHRAE rated PrecisionPak as
prefilters. Refer to individual bulletins for performance data on these prefilters.

PrecisionCell filters are the preferred selection for
hospital systems where code or good practice
require that the filters be downstream of coils.

PrecisionCell filters should be installed with separators vertical where ever possible. It is permissible to
install 24” x 12” face size cartridges with separators
horizontal if necessary to meet the size requirements of the filter bank.

Hospital Applications

PrecisionCell filters should be selected using 24” x
24” and 24” x 12” face sizes. This allows for 12”
increments in height and width of the filter bank and
insures that replacement cartridges will be readily
available.

or
e

Application Guidelines

Guide Specifications

1.0 General

1.1 Medium and high efficiency rigid filters shall be
PrecisionCell extended media separator type
rigid filters as manufactured by Flanders.

2.4 Filters shall be UL 900 Class 1 listed.
3.0 Performance

2.0 Filter Construction

3.1 Initial and final resistances shall not exceed the
scheduled values.

fil

1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.

2.1 Filters shall be constructed by pleating a
continuous sheet of moisture-resistant waterlaid micro-fine glass media into closely spaced
pleats with hemmed-edge corrugated aluminum
separators.

2.2 The filter pack shall be sealed into a 24 ga. steel
frame.

2.3 The enclosing frame shall be assembled in a
rigid manner and shall incorporate a single or
double header as required by job conditions.

3.2 Media area must equal or exceed that of the
specified filter.
3.3 The average efficiency shall be as determined
by the ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in the literature within tolerances as
outlined in Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

PrecisionCell HT
High Temperature Rigid Filters

They are ideal for paint drying ovens or any application requiring high efficiency filtration at high temperatures. PrecisionCell HT filters are offered in two
high temperature operating ranges; 750o F and
900o F and efficiency ranges of 65%, 85% and 95%
per ASHRAE Standard 52.1.

Construction

PrecisionCell HT filters are designed for high temperature applications up to 900o F. They feature the
same rugged construction as the standard
PrecisionCell. The HT version is manufactured of
specially selected components to meet high temperature requirements.

The media is designed for operation in high temperature applications and manufactured from one
continuous sheet of wet-laid micro-fine fiberglass,
which provides the required tensile strength and
operating pressure drop for these stringent applications.

Physical Data

Frame: 24 ga. aluminized steel
Media: Microfine fiberglass

General

ASHRAE 85% 88255.xxxxxx
ASHRAE 95% 89255.xxxxxxH

or
e

ASHRAE 65% 86255.xxxxxxH

Separators: Hemmed-edge corrugated aluminum
Header Frame: 7/8” wide aluminized steel
Faceguards: Aluminized steel expanded
Cross Bracing: 1/2” “T” strap downstream and horizontal strap upstream

The enclosing frame is manufactured of aluminized
steel, which is designed not to be negatively affected by elevated temperatures.

The media pack is protected by air entering and air
leaving retainer screens. Grid strap bracing on the
air entering and leaving sides maintain the rigidity
and integrity of the PrecisionCell HT.

Important Features

• Continuous duty up to 900 oF

fil

• Aluminized steel construction
• 65%, 85%, 95% efficiencies

• Faceguards and grid straps

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

60-65%
900
750
80-85%
900
750
90-95%
900

x
x
x
x
x
x
x
x
x
x
x
x

24
12
24
12
24
12
24
12
24
12
24
12

x
x
x
x
x
x
x
x
x
x
x
x

12
12
12
12
12
12
12
12
12
12
12
12

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

.35
.30
.55
.50
.60
.55

Weight
Each
(lbs)

140
69
175
90
140
69
175
90
140
69
175
90

26
21
28
22
26
21
28
22
26
21
28
22

24
24
24
24
24
24
24
24
24
24
24
24

750

Media
Area
(sq. ft.)

or
e

500 fpm
Rating
cfm
pd

Nominal Size
H x W x D (inch)

Operating
o
Limit F

Efficiency

Notes:

1. PD represents clean pressure drop in inchw.g. The recommended final pressure drop is 2.5 inch w.g.
2. Operation down to zero velocity is satisfactory for all models.
3. Efficiencies are average and are based on ASHRAE Standard 52.1 dust spot test methods. Performance values stated may be averages typical of the products listed. Contact factory for actual performance test reports
on specific products.

Guide Specifications

1.0 General

1.1 High temperature rigid filters shall be
PrecisionCell HT separator type as manufactured
by Flanders.

2.3 Expanded metal aluminized steel faceguards shall
be installed on the air entering and air leaving
sides.

2.0 Filter Construction

3.0 Performance

2.1 Filters shall be constructed by pleating a continuous sheet of wet-laid micro-fine glass media into
closely spaced pleats with hemmed-edge corrugated aluminum separators.

3.1 Initial and final resistance shall not exceed the
scheduled values.

2.2 The filter pack shall be sealed into a 24 ga.
aluminized steel frame with fire-retardant sealant.

3.3 The manufacturer shall guarantee performance as
outlined in section 7.4 of ARI Standard 800.

fil

1.2 Filter sizes and temperature ranges shall be as
scheduled on the drawings.

2.4 A 1/2” “T” strap shall be installed on the downstream side and 1/2” horizontal strap on the air
entering side.

3.2 Media area shall equal that of the scheduled high
temperature filter.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

PrecisionCell GT
Gas Turbine Rigid Filters

The PrecisionCell GT features heavy-duty construction to meet the rigorous demands of gas turbine rotary machinery air filtration applications.
They may also be utilized where extreme velocity or
turbulence have rendered other products to be ineffective. PrecisionCell GT filters are available in
ASHRAE efficiencies of 60-65% and 90-95% in
either single or double header versions.

The heavy duty corrosion-resistant steel frame and
expanded metal faceguards on both the air entering
and air leaving sides protect the media pack.
Retainer straps on both sides prevent filter collapse
and maintain rigidity in high-pressure drop situations and blow back from turbine surges.

General

or
e

ASHRAE 65%z: PGT65xxxxxxxH
ASHRAE 95%: PGT95xxxxxxxH

Physical Data

Media: Dual layer wet-laid micro-fine fiberglass
Separators: Hemmed-edge corrugated aluminum
Media Sealant: Lofted glass mat
Headers: 13/16” wide aluminized steel
Faceguards: Galvanized steel expanded

The PrecisionCell GT offers a high dust holding
capacity for increased service life, eliminating costly downtime and maintenance associated with filter
change out. The media is manufactured of a wetlaid, moisture resistant, dual layer micro-fine fiberglass for high tensile strength and long service life.
The heavy gauge hemmed-edge corrugated aluminum separators offer increased pack rigidity with
optimal pleat spacing.

Frame: Heavy duty corrosion-resistant steel

Features

Gridstraps: 1/2” aluminized steel”T” strap downstream and horizontal strap upstream

Important Features

• Dual layer media for increased service life

fil

• Faceguards and grid straps

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

65%

95%

250 fpm
cfm

24x24x12

1000

24x12x12

500

24x24x12

1000

24x12x12

500

.15

.25

375 fpm
cfm

1500
750
1500
750

.25

.45

500 fpm
cfm

2000
1000
2000
100

625 fpm

.35

.65

cfm

2500
1250
2500
1250

Notes:

Weight
Each
(lbs.)

.40

.78

140

PD represents clean pressure drop in inchw.g. The recommended final pressure drop is 2.5 inch w.g.
Operation down to zero velocity is satisfactory for all models.
Performance tolerances conform to section 7.4 of ARI Standard 850.
Performance values stated may be averages typical of the products listed. Contact factory for actual performance
test reports on specific products.

1.
2.
3.
4.

Media
Area
(sq.ft.)

Nominal
Size
HxWxD
(inch)

or
e

Nominal
Depth Efficiency
(inch)

Guide Specifications

1.0 General

1.1 Medium and high efficiency gas turbine rigid filters shall be PrecisionCell GT extended media
separator type filters as manufactured by
Flanders.

1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.

2.5 1/2” corrosion-resistant steel “T” straps shall be
installed on the air leaving side and horizontal
strap on air entering side.
2.6 Filters shall be UL 900 Class 1 listed.
3.0 Performance

2.1 Filters shall be constructed by pleating a continuous sheet of moisture-resistant dual layer, wetlaid micro-fine glass media into closely spaced
pleats with hemmed-edge corrugated aluminum
separators.

3.1 Initial and final resistance shall not exceed the
scheduled values.

fil

2.0 Filter Construction

2.2 The filter pack shall be compression sealed into
a 24 ga. corrosion-resistant steel frame.

2.3 The enclosing frame shall be assembled in a
rigid manner and shall incorporate a single or
double header as required by job conditions.

2.4 corrosion-resistant steel expanded metal faceguards shall be installed on the air entering and
leaving sides.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

PrecisionCell II
Extended Surface Mini Pleat

In-Line Space-Saving Design

PrecisionCell II filters are especially suitable for
variable air volume systems and are designed to
operate at face velocities up to 625 fpm. Two styles
are available: standard box style and an optional
headered (top and bottom) version that are manufactured with a header for use with existing side
access housings (see Optional Model).
PrecisionCell II filters are UL 900 Class 2 listed.

Installation Considerations
PrecisionCell II filters may be installed in Flanders
Type 9 Holding Frames and Surepleat Side Access
Housings or similar existing hardware. Type 9
Holding Frames are riveted together to form a bank
and may be installed for upstream or downstream
service. Smaller systems and systems with minimum upstream access space are best served using
Surepleat Side Access Housings.

Physical Data

Optional Model

PrecisionCell II filters dramatically reduce in-line
space requirements when compared to 12” to 36”
deep filters. Their nominal 4” depth makes a convenient “fit” for most installations. High efficiency filtration, that is often required for acceptable Indoor
Air Quality, may now be selected by the design
engineer without having to compromise space.

PrecisionCell II extended surface minipleat rigid filters are a nominal four inches deep. They are
designed for use in most commercial and industrial
HVAC systems where medium to high efficiency filtration is required. They are available in average
efficiency ranges of 60-65%, 80-85% and 90-95%
per ASHRAE Standard 52.1 atmospheric dust spot
test methods.

General

ASHRAE 85%: 88655.04xxxx
ASHRAE 95%: 89655.04xxxx

or
e

ASHRAE 65%: 86655.04xxxx

Frame: Double-wall, moisture-resistant beverage board
Media: Water-laid microfine fiberglass with a
water-repellent binder
Media Support: Adhesive-bead pleat separators
Face Grid: Horizontal and diagonal supports bonded to
the media pack
Operating Limits: 160° F and 100% RH

Optional headered version PrecisionCell II filters
are the same size and have the same functional
design as the standard model. The filter is built with
a metal-reinforced header on the top and bottom of
the filter near the air entering side. The header
allows the filter to fit over the standing flanges of the
primary filter channel in existing side access housings. Headered PrecisionCell II filters are furnished
with a 1/2” wide polyfoam gasket on their vertical
sides to provide a filter-to-filter seal.

Important Features

fil

• Available in nominal 65%, 85%, and 95%
ASHRAE efficiencies
• Space-saving 4” thickness for installation flexibility

• Rugged moisture-resistant bonded frame and
unitized pack for rigidity

• Cartridge design is ideal for VAV systems or turbulent flow conditions
• Lightweight and easy to store and handle

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Construction

or
e

In the Flanders tradition of state-of-the-art technology, PrecisionCell II filters are built with a minipleat media
pack to achieve a rugged, compact lightweight, high efficiency filter.

Surepleat Side Access Housings

Use a Surepleat Side Access Housing as a convenient and space-saving method of installing
PrecisionCell II filters. SP2/4 housings have two
gasketed extruded aluminum tracks to accept 2”
pleated prefilters and 4” PrecisionCell II final filters.

fil

The adjacent photo shows a Surepleat Side
Access Housing with 2” Prepleat 40 pleated prefilters and PrecisionCell II final filters.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

VAV Systems

Prefilters are always a wise choice for the protection of minipleat filters no matter what the efficiency
or brand. The closely-spaced pleats are subject to
face-loading (bridging) by lint and coarse particles,
thus reducing their usual long life. A minimum 2530% ASHRAE efficiency pleated panel filter such
as the Flanders Prepleat 40 is recommended.

Filter banks should be sized so that the face velocity at maximum design conditions is 625 fpm or
less. PrecisionCell II filters may be applied at any
capacity between 0 and 625 fpm. Operating a filter
bank at reduced flow will greatly increase expected
filter life.

Using the 24” x 24” size as an example, a carton of
four PrecisionCell II 4” filters has a volume of 5.3
cubic feet and a weight of 26 lbs. Compare this to
four 12” deep rigid separator-type filters packed in
four cartons with a total volume of 16 cubic feet and
total weight of 80 lbs.

Type 9 Frame with
PrecisionPak and Pre
Pleat 40

Type 9 Frame with
PrecisionCell II and
PrePleat 40

Application Guidelines

Compare the airway lengths of 22” PrecisionPak
bag filters and 12” Rigid-Air filter to a 4”
PrecisionCell filter when they are installed with 2”
prefilters.

Save Storage Space and Shipping Costs

Save In-Line Space

or
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Prefilters

fil

PrecisionCell II filters should be selected for new
installations with 24” H x 24” W and 24” H x 12” W
face sizes. These are the most widely used and
stocked sizes. This allows for 12” increments in
height and width of the filter bank and insures that
replacement cartridges will be readily available.

PrecisionCell II filters should be installed with the
pleats vertical wherever possible. It is permissible
to install 24” H x 12” W face size filters with pleats
horizontal if necessary to meet the size requirements of the filter bank.

Sureseal Housing with
12” Rigid-Air and
PrePleat 40

Surepleat Housing with
PrecisionCell II and
PrePleat 40

PrecisionCell II filters are ideal as prefilters for
Alpha Cell HEPA filters. Their light weight and 4”
depth make them an excellent choice for installation in the optional Prefilter Frame Assembly for the
Alpha Cell HEPA Filter Holding Frame or in
Surelock Side Access HEPA Housings.
Specify the Surelock housing with an optional 4”
wide prefilter track for the PrecisionCell II filters, in
lieu of the 2” wide prefilter track for pleated panel filters. We recommend the selection of 80-85%
PrecisionCell II filters as HEPA prefilters.

HEPA Prefilters

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Capacities and Dimensions

80-85%
60-65%

x
x
x
x
x
x

24
12
24
12
24
12

x
x
x
x
x
x

4
4
4
4
4
4

250 fpm

375 fpm

cfm

500 fpm

cfm

500
250
500
250
500
250

.11 1000 26 1500 .42 2000 .68
.11 500 .26 750 .42 1000 .68
.08 1000 .21 1500 .36 2000 .58
.08 500 .21 750 .36 1000 .58
.06 1000 .13 1500 .25 2000 .40
.06 500 .13 750 .25 1000 .40

cfm

625 fpm

Media Weight
Area
Each
(sq. ft.) (lbs.)

cfm

2500
1250
2500
1250
2500
1250

or
e

24
24
24
24
24
24

90-95%

125 fpm

.95
.95
.80
.80
.58
.58

120
60
120
60
120
60

6.5
3.5
6.5
3.5
6.5
3.5

Nominal Size
H x W x D (inch)
Note 3

Other Standard Size PrecisionCell II Filters

x
x
x
x
x
x

20
16
20
18
20
16

x
x
x
x
x
x

4
4
4
4
4
4

Pressure Drop

1400
1100
1850
1500
1750
1400

60-65%

80-85%

.40

.58

.40

.58

.40

.58

90-95%

Media Area
(sq. ft.)

Weight Each
(lbs.)

84
66
105
93
105
84

4.0
3.5
5.5
5.0
6.0
4.0

20
20
24
24
25
25

Nominal
Capacity (cfm)

.68
.68
.68

Nominal Size
H x W x D (inch)
Note 3

Notes
1. PD represents clean pressure drop in inches w.g. Recommended final pressure drop for all models is 1.5 inch w.g.
2. Operation down to zero air flow is satisfactory for all models.
3.Actual filter face size of 24” x 24” and 24” x 12” is 5/8” undercut on height and width. All other sizes are 1/2” undercut on height and width. Actual filter depth is 3-3/4”
4. Efficiency is average and is based on ASHRAE Standard 52.1 test methods.
5. Performance tolerances conform to Section 7.4 of ARI Standard 850.
6. PrecisionCell II 24” x 12” filters are available with notches on the 24” horizontal sides. Contact factory.
7. Performance values stated may be averages typical of the products listed. Contact factory for actual performance
test reports on specific products.

Guide Specifications

1.0 General

1.1 Medium and high efficiency extended surface filters shall be PrecisionCell II minipleat panel filters as manufactured by Flanders.

fil

1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.
1.3 Filters shall be UL 900 Class 2 listed.
2.0 Filter Construction

2.1 The filter pack shall be constructed of water-laid
microfine fiberglass media containing a waterrepellent binder formed into closely-spaced
pleats held in position by adhesive bead separators.
2.2 The filter pack shall be strengthened on the a i r
entering and air exit sides with horizontal and

diagonal support members.
2.3 The enclosing frame shall be double-wall waterresistant beverage board sealed between the
walls and to the filter pack with adhesive.
3.0 Performance
3.1 Initial and final resistances shall not exceed t h e
scheduled values.
3.2 Media area must equal or exceed that of the
specified filter
3.3 The average efficiency shall be as determined by
ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in the literature within tolerances as
outlined in Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
64

Corporate Headquarters, St. Petersburg, FL

EA Cartridge
Medium-High Efficiency Replacement Filters
ASHRAE 55%: EA-55xx
ASHRAE 95%: EA-95xx

or
e

ASHRAE 30%: EA-30xx
ASHRAE 85%: EA-85xx

Application

EA Series Replacement Air Filters are pre-formed,
extended surface deep-pleated cartridges for use
with existing hardware in commercial and industrial
HVAC systems. EA Series filters are available in
average efficiency ranges of 25-30%, 50-55%, 8085% and 90-95% when tested according to
ASHRAE Standard 52.1 methods. EA Series filters
are UL 900 listed Class 2.

EA Series cartridge filters are designed to be used
only in existing hardware as pictured below. This
hardware consists of metal holding frames, sealer
frames and wire basket-type retainers that may be
used in either front or rear-loading built-up filter
banks or side access housings.

Physical Data
Media: Non-woven cotton and synthetic blend or
moisture-resistant micro-fine lofted glass fiber reinforced with remay backing
Panels: Top and bottom; 1/16” thick fiber
board
Adhesive: Hot-melt thermoplastic
Operating Limits: 180 degrees Fahrenheit

EA filter media is a non-woven cotton and synthetic blend (25% efficient) or moisture-resistant microfine lofted glass fiber (55%,85%or 95% efficient).
The media is reinforced with a non-woven remay
backing and formed into a “pack” which is then hotmelt bonded top and bottom to 1/16” thick stiff moisture-resistant fiberboard panels. Alignment of the
pleats in the media pack is carefully controlled during the bonding operation to facilitate insertion of
the cartridge into the wire media retainer during
installation. The completed filter is folded before
being boxed to minimize shipping and storage volume.

EA Cartridge Disposable Replacement Air Filters
are fully interchangeable with other manufacturers’
cartridge filters and hardware. Units of one efficiency may be replaced in the same system hardware with similar size and depth units of another
efficiency. When upgrading efficiencies, be sure to
check the capability of the fan to overcome the
increased pressure drop.

Construction

General

Important Features

fil

• Fully interchangeable with other manufacturers’ hardware.
• Heavy-duty fiberboard side panels.

• Filters are UL 900 Class 2 listed.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

50-55

80-85

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

High cfm

8
8
8
8
8
12
12
8
8
8
8
8
12
12
8
8
8
8
8
12
12
8
8
8
8
8
12
12

600
750
900
950
1000
800
1500
550
600
700
800
900
600
1000
400
400
400
500
600
600
1000
350
400
400
450
500
450
900

1000
1250
1500
1750
2000
1200
2500
800
1000
1100
1250
1500
1000
2000
600
700
800
1000
1200
1000
2000
500
600
800
850
1000
750
1500

.10
.10
.10
.10
.10
.10
.10
.12
.12
.12
.12
.12
.12
.12
.25
.25
.25
.25
.25
.25
.25
.30
.30
.30
.30
.30
.30
.30

.20
.20
.20
.20
.20
.20
.20
.30
.30
.30
.30
.30
.30
.30
.45
.45
.45
.45
.45
.45
.45
.55
.55
.55
.55
.55
.55
.55

14.5
15.8
19.8
25.6
29.0
21.0
42.0
14.5
15.8
19.8
25.6
29.0
21.0
42.0
14.5
15.8
19.8
25.6
29.0
21.0
42.0
14.5
15.8
19.8
25.6
29.0
21.0
42.0

20
10
10
10
10
20
10
10
5
5
5
5
10
5
10
5
5
5
5
10
5
10
5
5
5
5
10
5

Guide Specifications

fil

1.0 General

1.1 Filters shall be Model EA Series replacement filters as manufactured by Flanders.
1.2 Filters shall be UL 900 Class 2 listed.

2.0 Filter Construction

2.1 Filters with an efficiency of 25%-30% shall be
constructed of a non-woven cotton and synthetic
blend bonded to 1/16” thick moisture-resistant
fiberboard panels.

15
12
14
19
18
25
26
11
7
8
10
11
15
14
10
6
7
9
10
14
14
10
6
8
10
11
14
14

Carton

Efficiency is average when tested per ASHRAE Standard 52.1 methods.
Listed pressure drop is for a clean filter. Recommended final pressure drop is 1.0 inch w.g. for all models.
Performance tolerances conform to Section 7.4 of ARI Standard 850.
Special sizes are not available.
EA cartridge hardware is not available.
Performance values stated may be averages typical of the products listed. Contact factory for actual performance test reports on specific products.

1.
2.
3.
4.
5.
6.

24
20
20
25
24
24
24
24
20
20
25
24
24
24
24
20
20
25
24
24
24
24
20
20
25
24
24
24

Low cfm

Quantity
per

90-95

x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

High

Wt per
Carton
(lbs.)

or
e

25-30

12
16
20
20
24
12
24
12
16
20
20
24
12
24
12
16
20
20
24
12
24
12
16
20
20
24
12
24

Low

Media
Area
(sq. ft.)

EA-30C8
EA-30K8
EA-30D8
EA-30H8
EA-30A8
EA-30C12
EA-30A12
EA-55C8
EA-55K8
EA-55D8
EA-55H8
EA-55A8
EA-55C12
EA-55A12
EA-85C8
EA-85K8
EA-85D8
EA-85H8
EA-85A8
EA-85C12
EA-85A12
EA-95C8
EA-95K8
EA-95D8
EA-95H8
EA-95A8
EA-95C12
EA-95A12

Pressure Drop
(inch w.g.)

Cfm Capacity

Efficiency
%

Actual
HxWxD
(inch)

Model
Number

2.2 Filters with an efficiency of 50-55% , 80-85%
and 90-95% shall be constructed of lofted synthetic media with moisture-resistant fiberboard
panels.
3.0 Performance
3.1 The manufacturer shall guarantee performance
as stated in its literature within tolerances as outlined in Section 7.4 ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Precision Pak
Extended Surface Bag Filters

Precision Pak filters are UL 900 Class 2 listed as a
standard and are also available in UL Class l.

Physical Data

Media: Lofted fiberglass or micro-fine synthetic
Media Backer: Non-woven polyester
Pocket Sealant: Thermoplastic resin
Pocket Retainer: 26 ga. corrosion-resistant steel
Header: 11/26” wide 26 ga. corrosion-resistant steel
Operating Limits: 100% RH and 190° F
Actual Header Face Size: Nominal size less 5/8” (e.g., a
nominal 24” x 24” filter header is actually 23-3/8” x 233/8”)

Installation Considerations

Precision Pak extended surface bag filters are
designed for use in most commercial or industrial
HVAC systems where medium to high efficiency filtration is required. Precision Pak filters are available
in two media types: lofted fiberglass and micro-fine
synthetic media with average efficiency ranges of
55%, 65%, 85%, and 95% per ASHRAE Standard
52.1 test methods. Operating face velocities up to
625 fpm are available for all models. Precision Pak
filters in depths up to 22” are suited for variable air
volume systems. Filters with greater depth are not
recommended.

General

or
e

Synthetic Class 1: PAPxx**Sxxxxx1 Synthetic Class 2: PAPxx**Sxxxx
Glass Class 1: PAPxx**Gxxxxx1 Glass Class 2: PAPxx**Gxxxx
(** insert 50, 65, 85 or 95 for ASHRAE efficiency)

Important Features

Precision Pak bag filters may be installed in
Flanders Type 9 Holding Frames, K-Trac Filter
Framing Modules, Sureseal Side Access Housings,
or in similar existing hardware.

• Low initial pressure drop provides longer life.

fil

• Adjustable-width stitched pockets provide
aerodynamics for optimal inflation.
• Wide range of cartridge depths, efficiencies
and operating capacities are available.
• Edges have an overlock stitch.

• Available in lofted fiberglass or synthetic media.
• 100% stake-through pocket retainers

• UL 900 Class 1 or 2 available

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Number
of
Pockets

15
15
22
22
22
22
22
22
30
30
30
30
30
30
36
36
36
36

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3

fil

8
4

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

0.30
0.30
0.32
0.32
0.24
0.24
0.22
0.22
0.30
0.30
0.22
0.22
0.20
0.20
0.27
0.27
0.20
0.20

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

65
33
48
24
64
32
79
40
65
33
87
43
108
54
78
39
104
52

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

cfm

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

0.44
0.44
0.47
0.47
0.36
0.36
0.34
0.34
0.42
0.42
0.33
0.33
0.31
0.31
0.38
0.38
0.30
0.30

0.40
0.40
0.42
0.42
0.36
0.36
0.34
0.34
0.36
0.36
0.25
0.25
0.24
0.24
0.32
0.32
0.23
0.23

cfm

or
e

65
33
48
24
64
32
79
40
65
33
87
43
108
54
78
39
104
52

625 fpm

2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

95% Synthetic Media
Nom. Nom. Media
375 fpm
Width Height Area
PD
(inch) (inch) (sq. ft) cfm

Nominal
Depth
(inch)

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

500 fpm

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4

15
15
22
22
22
22
22
22
30
30
30
30
30
30
36
36
36
36

Number
of
Pockets

Nominal
Depth
(inch)

85% Synthetic Media
Nom. Nom. Media
375 fpm
Width Height Area
PD
(inch) (inch) (sq. ft) cfm

500 fpm

0.59
0.59
0.63
0.63
0.51
0.51
0.48
0.48
0.57
0.57
0.46
0.46
0.43
0.43
0.51
0.51
0.41
0.41

625 fpm

cfm

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

0.55
0.55
0.60
0.60
0.51
0.51
0.48
0.48
0.52
0.52
0.37
0.37
0.35
0.35
0.47
0.47
0.33
0.33

2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250

0.75
0.75
0.79
0.79
0.67
0.67
0.64
0.64
0.73
0.73
0.52
0.52
0.49
0.49
0.66
0.66
0.47
0.47

Performance values stated may be averages typical of the products listed. Contact factory for actual performance test
reports on specific products.

How to Select a Precision Pak Filter
• Determine the ASHRAE efficiency desired.
• Determine the face velocity needed to fit the system
• Select the shortest depth possible with a pressure drop that is acceptable
• Select the most economical filter based on the number of pockets per 24” x 24” size.

Number
of
Pockets

15
15
22
22
22
22
22
22
30
30
30
30
30
30
36
36
36
36

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4

0.18
0.18
0.19
0.19
0.16
0.16
0.15
0.15
0.16
0.16
0.14
0.14
0.14
0.14
0.15
0.15
0.14
0.14

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

65
33
48
24
64
32
79
40
65
33
87
43
108
54
78
39
104
52

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

or
e

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

65% Synthetic Media
Nom. Nom Media
375 fpm
Width Height Area
PD
(inch) (inch) (sq. ft) cfm

fil

65
33
48
24
64
32
79
40
65
33
87
43
108
54
78
39
104
52

0.18
0.18
0.19
0.19
0.16
0.16
0.15
0.15
0.18
0.18
0.15
0.15
0.14
0.14
0.18
0.18
0.14
0.14

625 fpm

0.28
0.28
0.30
0.30
0.25
0.25
0.24
0.24
0.26
0.26
0.21
0.21
0.20
0.20
0.24
0.24
0.20
0.20

cfm

2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250

0.35
0.35
0.37
0.37
0.33
0.33
0.31
0.31
0.35
0.35
0.31
0.31
0.29
0.29
0.32
0.32
0.29
0.29

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

Nominal
Depth
(inch)

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4

15
15
22
22
22
22
22
22
30
30
30
30
30
30
36
36
36
36

Number
of
Pockets

Nominal
Depth
(inch)

CAPACITIES AND DIMENSIONS
55% Synthetic Media
Nom. Nom. Media
375 fpm
500 fpm
Width Height Area
PD
cfm
PD
(inch) (inch) (sq. ft) cfm

500 fpm

625 fpm

cfm

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

0.28
0.28
0.30
0.30
0.25
0.25
0.24
0.24
0.29
0.29
0.23
0.23
0.22
0.22
0.26
0.26
0.22
0.22

2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250

0.39
0.39
0.41
0.41
0.37
0.37
0.34
0.34
0.39
0.39
0.34
0.34
0.32
0.32
0.36
0.36
0.31
0.31

Notes:
1.PD represents clean pressure drop in inches w.g. for synthetic media filters. Add 10% for fiberglass media
Precision Pak.
2.The recommended final pressure drop for all models is 1.0 inch w.g.
3.Gross media area is approximately 7% more than the net area listed.
4. Performance values stated may be averages typical of the products listed. Contact factory for actual performance test reports on specific products.

or
e

Application Guidelines

Gasketed Headers

Properly selected bag filters without prefilters will
generally require changeout annually in typical
HVAC applications. Because of the frequent maintenance expense and increase in fan kW input using
prefilters, they are often recommended with 85%
and 95% efficient Precision Pak final filters.
However, the energy cost to operate a prefilter seldom warrants their use with 55% or 65% filters.

Precision Pak filters installed in Flanders K-Trac
Filter Framing Modules or Sureseal Side Access

Prefilters

Precision Pak filters should be installed with pockets
vertical wherever possible. It is acceptable to install
24” x 12” face size filters with pockets horizontal if
necessary to meet the size requirements of the filter
banks.

Housings require polyfoamgaskets on opposite
header sides to prevent air bypass. To specify
Precision Pak filters with gasketed headers, add
suffix ”S” or “H” to the model number.

Precision Pak filters should be selected using 24” x
12” face sizes. This allows for 12” increments in
height and width of the filter bank and insures that
replacement filters will be readily available.

Guide Specifications

1.0 General

1.1 Medium and high efficiency self-supporting filters
shall be Precision Pak extended surface type as
manufactured by Flanders.

1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.

2.4 Pockets shall be 100% stake-through crimped to
prevent media pull-out
2.5 Pockets shall be bonded to corrosion-resistant
steel casings and assembled into a corrosionresistant steel header.
2.6 Filters shall be UL 900 Class 2 or Class 1 listed.
3.0 Performance

2.1 Filters shall be constructed of lofted fiberglass or
micro-fine synthetic media encased in a thin nonwoven polyester backer mat.

3.1 Initial and final resistances shall not exceed the
scheduled values.

fil

2.0 Filter Construction

2.2 Open area on the filter face for air passage shall
be not less than 90%.

2.3 Flexible internal support stitching shall maintain
individual pockets in a controlled form under all
rated air flow conditions. Stitchings shall be
sealed with thermoplastic sealant. Edges shall
be finished with overlock stitch to prevent air
unravelling.

3.2 Media area must equal or exceed that of the specified filter.
3.3 The average efficiency shall be as determined by
the ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in its literature within tolerances as outlined is Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Precision Pak XDH

or
e

High Dust Holding Capacity
Extended Surface Bag Filter

Models XDHxx**Sxxxx
(** insert 50, 65, 85 or 95 for ASHRAE efficiency)

Kimberly-Clark Media

A typical XDH bag filter was tested for ASHRAE
synthetic dust holding capacity against similar filters with fiberglass and meltblown synthetic media.
Results showed that the XDH filter held approximately 110% more dust by weight than the others
when run to the same final resistance. This characteristic makes it an excellent choice for very
dusty areas and for those systems where long
service life and reduced maintenance are key concerns.

Physical Data

Media: Kimberly-Clark INTREPIDTM
Media Backer: Non-woven polyester
Pleat Sealant: Thermoplastic resin
Pleat Retainer: 26 ga. galvanized steel
Header: 7/8” wide 26 ga. galvanized steel
Operating Limits: 100% RH and 190° F
Actual Header Face Size: Nominal size less 5/8” (e.g.,
a nominal 24” x 24” filter header is actually 23-3/8”
x 23-3/8”)

Important Features

Precision Pak XDH bag filters use Kimberly-Clark
brand polyolefin synthetic media. The media is
thermally bonded without binders and consists of
non-woven continuous hydrophobic (water repellent) fibers that resist water and most chemicals. In
addition, the media is gradient density, dual stage
and electrostatically enhanced for extra high dust
holding (XDH) capability. Further, the media is

Extra High Dust Holding

Precision Pak XDH high dust holding capacity
extended surface bag filters are designed for use in
most commercial or industrial HVAC systems
where medium to high efficiency filtration is
required. Precision Pak XDH filters are available in
micro-fine polyolefin synthetic media with average
efficiency ranges of 75%, 85% and 95% per
ASHRAE Standard 52.1 test methods. Operating
face velocities up to 625 fpm are available for all
models. Precision Pak XDH filters in depths of 12”
and 22” are suited for variable air volume systems.
Filters with greater depth are not recommended.
Precision Pak XDH filters are UL 900 Class 2 listed.

non-shedding and performs exceptionally well in
high velocity and turbulent applications.

General

• INTREPIDTM by Kimberly-Clark
• Extra high dust holding capacity

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• Dual stage gradient density electrostatic media
• Low initial pressure drop provides long life
• Wide range of depths and face sizes
• Linear stitching for optimum pocket form

• Three ASHRAE efficiencies: 75%, 85% and
95%

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

12
12
22
22
22
22
22
22
26
26
26
26
26
26
30
30
30
30
30
30

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4
10
5

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

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e
th

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

Number
of
Pockets

0.26
0.26
0.24
0.24
0.21
0.21
0.20
0.20
0.23
0.23
0.20
0.20
0.17
0.17
0.22
0.22
0.18
0.18
0.14
0.14

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

52
26
48
24
64
32
79
40
56
28
75
38
94
47
65
33
87
43
108
54

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

0.40
0.40
0.34
0.34
0.30
0.30
0.26
0.26
0.30
0.30
0.27
0.27
0.24
0.24
0.26
0.26
0.24
0.24
0.22
0.22

cfm

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

or
e

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

0.36
0.36
0.34
0.34
0.30
0.30
0.28
0.28
0.33
0.33
0.29
0.29
0.26
0.26
0.32
0.32
0.28
0.28
0.24
0.24

95% XDH Synthetic Media Filters
Nom. Nom. Media
375 fpm
500 fpm
Width Height Area
pd
cfm
pd
(inch) (inch) (sq. ft) cfm

Nominal
Depth
(inch)

52
26
48
24
64
32
79
40
56
28
75
38
94
47
65
33
87
43
108
54

625 fpm
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4
10
5

12
12
22
22
22
22
22
22
26
26
26
26
26
26
30
30
30
30
30
30

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

Number
of
Pockets

Nominal
Depth
(inch)

85% XDH Synthetic Media Filters
Nom. Nom. Media
375 fpm
500 fpm
Width Height Area
pd
cfm
pd
(inch) (inch) (sq. ft) cfm

0.58
0.58
0.46
0.46
0.42
0.42
0.38
0.38
0.42
0.42
0.38
0.38
0.35
0.35
0.38
0.38
0.34
0.34
0.32
0.32

0.58
0.58
0.46
0.46
0.40
0.40
0.38
0.38
0.44
0.44
0.39
0.39
0.36
0.36
0.42
0.42
0.38
0.38
0.34
0.34

625 fpm
cfm

2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250
2500
1250

0.74
0.74
0.62
0.62
0.56
0.56
0.50
0.50
0.56
0.56
0.52
0.52
0.47
0.47
0.50
0.50
0.46
0.46
0.44
0.44

Performance values stated may be averages typical of the products listed. Contact factory for actual performance test
reports on specific products.

How to Select a Precision Pak XDH Filter:
• Determine the ASHRAE efficiency desired.
• Determine the face velocity needed to fit the system.
• Select the shortest depth possible with a pressure drop that is acceptable.
• Select the most economical filter based on the number of pockets per 24” x 24” size.

Installation Considerations
Precision Pak bag filters may be installed in Flanders
Type 9 Holding Frames, K-Trac Filter Framing
Modules, Sureseal Side Access Housing or in similar existing hardware.
Type 9 Holding Frames are riveted together to form
a bank and may be installed for upstream or downstream service. K-Trac Filter Framing Modules are
especially suitable for medium to large built-up filter
banks. Smaller systems and systems with minimum
upstream access space are best served using
Sureseal Side Access Housings.

500

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Grams of dust held

600

400
XDH

300
200

Fiber
Glass

100

Synthetic

Performance Data

24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12
24
12

24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24

fil

12
6
6
3
8
4
10
5
6
3
8
4
10
5
6
3
8
4
10
5

52
26
48
24
64
32
79
40
56
28
75
38
94
47
65
33
87
43
108
54

1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750
1500
750

12
12
22
22
22
22
22
22
26
26
26
26
26
26
30
30
30
30
30
30

Number
of
Pockets

75% XDH Synthetic Media Filters
Nom. Nom Media
375 fpm
500 fpm
Area
Width Height
PD
cfm
PD
(inch) (inch) (sq. ft) cfm

Nominal
Depth
(inch)

Comparison of XDH to fiberglass
and synthetic filters with the same
media content.

0.25
0.25
0.23
0.23
0.20
0.20
0.19
0.19
0.22
0.22
0.19
0.19
0.16
0.16
0.21
0.21
0.17
0.17
0.13
0.13

2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000
2000
1000

0.34
0.34
0.32
0.32
0.28
0.28
0.26
0.26
0.31
0.31
0.27
0.27
0.24
0.24
0.30
0.30
0.26
0.26
0.22
0.22

625 fpm
cfm

2000
1250
2000
1250
2000
1250
2000
1250
2000
1250
2000
1250
2000
1250
2000
1250
2000
1250
2000
1250

0.56
0.56
0.44
0.44
0.38
0.38
0.36
0.36
0.42
0.42
0.37
0.37
0.34
0.34
0.40
0.40
0.36
0.36
0.32
0.32

1. PD represents clean pressure drop in inches w.g.
2. The recommended final pressure drop for all models is 1.0 inch w.g.
3. Filters in all standard depths may be operated down to zero air flow on VAV systems.
4. Gross media area is approximately 7% more than the net media area listed.
5. Performance values stated may be averages typical of the products listed. Contact factory for actual performance test reports on specific products.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Gasketed Headers

Precision Pak XDH filters should be selected using
24” x 12” and 24” x 24” face sizes. This allows for
12” increments in height and width of the filter bank
and insures that replacement filters will be readily
available.

Precision Pak XDH filters installed in Flanders KTrac Filter Framing Modules or Sureseal Side
Access Housings require polyfoam gaskets on
opposite header sides to prevent air bypass.

Properly selected bag filters without prefilters will
generally require changeout annually in typical
HVAC applications. Because of the frequent maintenance expense and increase in fan kW input
using prefilters, they are seldom recommended on
lower efficiency final filters. However, prefilters are
often used on 85% and 95% efficiency applications.

VAV systems can be designed using the full range
depth of Precision Pak XDH filters. Filter banks
should be sized so that the maximum rated flow at
design conditions falls within the published recommended velocities. Precision Pak XDH filters in all
standard depths can be applied at any capacity
between zero flow and catalog-rated capacities.

Prefilters

VAV Systems

To specify Precision Pak XDH filters with gasketed
headers, add suffix “S” or “H” to the model number.
Use “S” gaskets on the sides parallel to the pockets
and “H” for gaskets on sides perpendicular to the
pockets.

Precision Pak XDH filters should be installed with
pockets vertical wherever possible. It is acceptable
to install 24” x 12” face size filters with pockets horizontal if necessary to meet the size requirements
of the filter banks.

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Application Guidelines

Guide Specifications

1.0 General

1.1 Medium and high efficiency self-supporting filters
shall be Precision Pak XDH extended
surface type as manufactured by Flanders.

2.5 Headers shall be gasketed with polyfoam on
vertical sides to prevent leakage when installed
in framing modules or Side Access Housings.

2.0 Filter Construction

2.6 Filters shall be UL 900 Class 2 listed.

2.1 Filters shall be constructed of polyolefin microfine synthetic media encased in a thin nonwoven polyester backer mat.

3.0 Performance

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1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.

2.2 Open area on the filter face for air passage shall
be not less than 90%.

2.3 Flexible internal support stitching shall maintain
individual pockets in a controlled form under all
rated air flow conditions. Stitching shall be
sealed with thermoplastic resin. Edges shall be
finished with a four-thread overlock stitch to prevent air bypass.

2.4 Pockets shall be bonded to galvanized steel casings and assembled into a galvanized steel
header with reverse-hemmed edges for safety.

3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 Media area must equal or exceed that of the
specified filter.
3.3 The average efficiency shall be as determined by
the ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in its literature within tolerances as
outlined is Section 7.4 of ARI Standard 850.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

MS/MSG
Moisture/Oil Mist Separators

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MS Models: MS-xxxxx
MSG Models: MSG-xxxxx

Installation Considerations

Flanders models MS and MSG Moisture
Separators are designed for use in air handling systems requiring collection of water droplets or oil
mist. Water droplets in outside air are usually fog.
In supply air, water droplets may occur as carry
over from cooling coils and evaporative media or
unevaporated moisture downstream of humidifiers.
Oil mist in return air is most often found in production machine shops.

In a mixed air (outside air/return air) system, place
the Moisture Separators in the outside air duct if
possible. Otherwise, place them as the first filtration stage ahead of the particulate filters.

For banks four or five separators wide, locate 3/4”
I.D. downspouts at each end. For banks six separators wide or wider, locate downspouts at each
end and proportionately along the width of the
bank, one for every six separators or a fraction
thereof. Example: a six separator wide bank would
have downspouts at both ends and one in the middle; an eight separator wide bank would have
downspouts at both ends and two more proportionately spaced along the width of the bank. If not individually trapped, the downspouts should be manifolded to a 1” I.D. or larger collector with a trap of a
depth exceeding the negative pressure expected in
the plenum where the separator bank is located.

The system designer must recognize that moisture
separators will also act as low efficiency particulate
prefilters and that the separator bank pressure drop
will increase over time. System static pressure calculations for fan selection should include an
allowance of at least 0.50 inch w.g. final static pressure for dirty wet moisture separators.

The optimum face velocity for MS and MSG
Moisture Separators is 500 fpm, and at this point
they are 98% efficient on 20 micrometer liquid
droplets. Performance is relatively unchanged in
the recommended range of 450 fpm to 550 fpm.
Above 550 fpm captured liquid may be re-entrained
in the airstream.

Moisture Separators may be installed in built-up
banks using Flanders Type 9 Holding Frames or in
Flanders Side Access Housings specially equipped
with drain tubes. When built-up banks are used,
field-fabricated water drain pans should be installed
between each horizontal row of frames.

Application

General

Models MS and MSG Moisture Separators are
meant to be installed with their pleats vertical so
that collected liquid will drain easily to the bottom of
the frame and out through five 3/8” diameter holes.
The top of the frame has an arrow to guide the
installer as to the proper air flow direction and position for proper drainage

Sureseal two-stage Side Access Housings may be
special-ordered with the 2” tracks fitted with drain
tubes to hold both Moisture Separators and particulate final filters. If the 2” tracks are to be used for
2” prefilters, a Surepleat single-stage Side Access
Housing with drain tube should be selected and
located upstream of the particulate filter housing.

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Important Features

• Efficiency of 98% on 20 micrometer liquid
droplets at 500 fpm
• Corrosion-resistant construction

• Nominal 2” thick for application flexibility

• Models for both built-up banks and side
access housings

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Construction
Moisture separators are constructed much like permanent metal washable filters. The nominal two inch thick
media pack consists of 15 individual layers of pleated and flat aluminum wire mesh.

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Air entering and exiting support grids are expanded metal, and the media enclosing frame is 16 ga. galvanized steel with five 3/8” diameter holes in the bottom for drainage.

Performance Data
Capacities and Dimensions

For Built-up
Banks

For Side Access
Housings
(Note 1)

Nominal Size
HxWxD inches
(Note 2)

MS24242
MS-12242
MS-24122

MSG-24242
MSG-12242
MSG-24122

24x24x2
12x24x2
24x12x2

375

1500
750
750

.14
.14
.14

450

1800
900
900

500

.20
.20
.20

2000
1000
1000

.22
.22
.22

Recommended Range of Face Velocities (FPM)

550

2200 .28
1100 .28
1100 .28

Model Number

625

2500
1250
1250

.34
.34
.34

Weight
Each
(lbs)
15
9
9

Notes
1.Model MSG separators for use in side access housings with drain tube option are furnished with neoprene
gaskets on vertical sides to prevent moisture bypass.
2. Actual separator size is 5/8” under on both height and width. Actual depth is 1-7/8”
3. For maximum capture of liquid droplets, operate separators in the 500 fpm + 10% range.
4. Pd= Pressure Drop, in w.g.
5. Special sizes are available. Contact your local representative or the factory.
6. Performance values stated may be averages typical of the products listed. Contact factory for actual perform-

ance test reports on specific products.

Guide Specifications
3.0 Performance

1.0 General

1.1 Moisture separators shall be Models MS or MSG
as manufactured by Flanders.
1.2 Separator sizes and capacities shall be as
scheduled on the drawings.

2.0 Filter Construction

2.1 Enclosing frame shall be nominal 2” thick 16 ga.
galvanized steel with five 3/8” drain holes in the
bottom.

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2.2 The media pack shall consist of 15 individual layers of pleated and flat aluminum wire mesh.
2.3 The face grids on the entry and exit sides shall be
expanded metal.

3.2 Initial resistance shall not exceed the scheduled
values.
4.0 Installation
4.1The installing contractor shall construct filter
banks or provide housings with drain tubes in
accordance with the separator manufacturer’s
recommendations.
4.2 Drain tubes and/or drain manifold shall be
trapped before running the piping to an open
drain.

2.4 Arrow on top of frame shall indicate placement of
separator as to air flow and drainage position.

3.1 Separators shall have a minimum efficiency of
98% on 20 micrometer water or oil droplets when
operated at 500 fpm gross face velocity.

2.5 Model MSG separators for use in side access
housings with drain tube option shall have neoprene gaskets on vertical frame sides to prevent
liquid by-pass.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

KKM
Washable Permanent Filters

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Galvanized frame: 50055.xxxxxx
Aluminum Frame: 51255.xxxxxx

The KKM offers large filtering area, high dust holding capacity, uniform loading and low resistance to
air flow. It is recommended that the filter media be
coated with dust adhesive for optimum performance.

Flanders Model KKM is a heavy duty, washable,
aluminum media, all metal filter. KKM is suitable for
all residential and commercial applications.

An all-aluminum version of the KKM is also offered,
which has an aluminum frame and is constructed
with expanded aluminum retainers.

The standard offering of KKM filters includes six of
the most popular face sizes in 1” and 2” depths.
Special face sizes and 1/2” depth filters are also
available. For ease of installation, all filters are
undercut slightly on length, width and depth.

General

The KKM filter has a rugged galvanized steel frame
that encloses the bonded expanded aluminum
mesh media. The corners are mitered and the
frame is secured with pop rivet(s). The KKM has
drain holes in three corners.

The KKM performs best as an impingement type filter. Optimum performance requires use of a dust
adhesive on the media. Flanders offers Filter
Boost.
Wash with a mild detergent and rinse to remove
collected dust.

Features

The bonded aluminum media is slit and expanded
to several different size openings. This design
allows contaminants to be trapped throughout the
entire filter depth and not just at the surface. The
media is retained within the frame by expanded galvanized steel.

Filter Coating and Cleaning

Construction

• Heavy duty, steel frame construction

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• Expanded steel retainers

• Bonded expanded aluminum media
• All aluminum version available

• Washable and reusable

• Standard and special sizes are available

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Standard KKM with Steel Frame
Actual Size
HxWxD

Quantity
per Carton

Carton
Weight (lbs)

10 x 20 x 1

9-3/4 x 19-3/4 x 7/8

1.7

15 x 20 x 1

14-3/4 x 19-3/4 x 7/8

2.5

16 x 20 x 1

15-5/8 x 19-5/8 x 7/8

2.7

16 x 25 x 1

15-5/8 x 24-5/8 x 7/8

20 x 20 x 1

19-5/8 x 19-5/8 x 7/8

20 x 25 x 1

19-5/8 x 24-5/8 x 7/8

10 x 20 x 2

9-3/4 x 19-3/4 x 1-7/8

16 x 20 x 2

15-5/8 x 19-5/8 x 1-7/8

16 x 25 x 2

15-5/8 x 24-5/8 x 1-7/8

20 x 20 x 2

19-5/8 x 19-5/8 x 1-7/8

20 x 25 x 2

19-5/8 x 24-5/8 x 1-7/8

24 x 24 x 2

23-5/8 x 23-5/8 x 1-7/8

Nominal Size
HxWxD

3.3
3.3

4.0
2.4

3.9
4.2
4.8
4.8

5.8

Guide Specifications

fil

1.0 General

1.1 Washable air filters shall be KKM Air Filters as supplied by Flanders.
2.0 Filter Construction

2.1 Frame shall be galvanized steel with mitered corners and secured with pop rivet(s).
Frame shall have drain holes in three corners.

2.2 Washable filter media shall be multiple layers of slit and expanded aluminum bonded
together.
2.3 Media retainer shall be expanded, galvanized steel.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Alpha 95
95% DOP Filter

Alpha 95 Filters are 97% efficient on nebulized
staphylococcus aerosols and are used to remove
biological contaminants. Alpha 95 Filters are identical in design and construction to the Alpha Cell
HEPA Filters except that the media is 95% efficient
on 0.30 micrometer particles.

Typical
•
•
•
•
•
•
•
•
•
•
•

Installation Considerations

Standard Alpha 95 Filters have 1.7 times the cfm
capacity of standard Alpha Cell 99.97% DOP HEPA
Filters at the same clean pressure drop. They are
normally rated at 500 fpm so that filter banks with
95% DOP filters can be sized the same as
ASHRAE-rated filter banks.

Important Features

applications for Alpha 95 Filters include:
Hospitals
Biomedical
Pharmaceutical
Biotechnology
Genetic Research
Universities
Laboratories
Food Processing
Photo Processing
Semiconductor Fabrication
Industrial Processing Systems Product

Alpha 95 Filters should be installed in Flanders leak
tight Alpha HEPA frames or Surelock Side Access
HEPA Housings on the positive-pressure side of the
system fan to prevent air bypass. Sureaire diffuser
sections, air mixing baffles or long transitions
should be used if the bank is close to the fan.

Flanders Alpha 95 Filters are designed for use in
HVAC applications requiring cleaner air than is possible with ASHRAE - rated filters, but where HEPA
- filtered air is not required. The filters are rated at
95% efficiency on 0.30 micrometer particles by the
DOP test method. The Alpha 95 filter is approximately 99% efficient by the ASHRAE 52.1 dust spot
test methods. However, it is not rated by these
methods because the standard applies to filters no
greater than 98% efficient.

Installation of Flanders 80-85% ASHRAE efficiency prefilters upstream of the fan is recommended to
ensure economical Alpha 95 Filter life.

General

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See component chart on page 79

• Minimum efficiency is 95% on 0.30 micrometer
particles.

fil

• Manufactured in a variety of wood and metal
frame types.
• Available with a media pack with aluminum separators or with a separatorless pack.

• Available in a variety of sizes with either a gasket seal or gel seal.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Alpha 95 Filter Dimensions and Capacities
Actual Face Size
(Inches

CFM Capacity at Clean
Pressure Drop, Inches w.g.
.90
1.45
1.90

11-1/2

GG-F
GC-F

24x24
24x12

1375
650

2000
920

2560
1180

YY-F
YUF

23-3/8x23-3/8
23-3/8x11-3/8

1350
610

1900
865

2450
1150

GN-F
CC-F`

24x30
12x12

1750
290

2550
430

3250
550

The Pureform Filter offers many advantages over conventional Separator Style 95% DOP Filters:

Construction
Flanders manufactures both conventional Separator
Style and Pureform Separatorless 95 DOP Filters. To
make a Separator Style filter, the media is folded over
corrugated aluminum separators with hemmed edges
to separate the pleats in the filter pack. Flanders
manufactures its own filter media, enabling it to
develop a unique manufacturing process for the production of Pureform Separatorless 95 DOP Filters. In
one manufacturing operation, Flanders produces a
self-supporting and self-separating Pureform Media
Pack.

• Increased usable media area affords longer service
life and higher dust holding capacity
• Maximum utilization of the media

Alpha 95 with
Separator Style
Media Pack

• Can handle some harsh environments which may
attack aluminum separators
• Media pack can be incinerated

• Media is 28 mils, significantly thicker than conventional media used in Separator Style 95 DOP Filters
(15 mil)

fil

• 11” deep PUREFORM Pack has 261 sq. ft. of media
as compared to 175 sq. ft. for a conventional
Separator Style filter.

• Ideal for heavy loading applications such as oil mist.

Weight
(lbs)

or
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Filter Size and Frame
Depth Designator

38
26

37
25
45
14

Filter Depth
(inches)

Alpha 95 with
Pureform Media Pack

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Frame Materials
Alpha 95 Filters are available in a variety of wood and metal frame materials such as particle board, plywood,
galvanized steel and stainless steel.

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Gasket and Fluid Seal

The standard gasket seal is 0.75” x 0.25” neoprene for installation on either the upstream, downstream or
both sides of the filter.
The standard Fluid Seal is Flanders Blu-Jel® Seal which is a two - part silicone material suitable for temperatures up to 390°F.

Fluid
Seal
Channel
On Filter

st
Frame or
Housing

Blu-Jel
Seal

Frame or
Housing

Knife Edge
On Frame or
Housing

Filter

Gasket
Seal

Faceguards (Optional)

Faceguards are used to protect the filter media from mechanical damage. The typical faceguard material is
expanded aluminized steel. Galvanized 4 x 4 mesh welded wire and Type 304 stainless steel faceguards
are also available.

UL Listings
Alpha 95 Filters are either UL900 Class 1 or Class 2 listed depending on materials of construction.

Holding Frames and Housings

fil

Alpha Frame

Surelock HEPA Housing

Alpha Frames are designed for Alpha 95 filters in built-up filter banks. Each filter is secured in the frame with
four bolt-type fasteners that either compress the gasket or press the knife edge into the gel in the filter channel to maintain a leak-tight seal.

Surelock HEPA Filter Housings are recommended for side-access applications. The filters are sealed in
place with either spring-loaded swing arm assemblies or a locking mechanism. The swing arm assemblies or
locking mechanism either compress the gasket or press the knife edge into the gel in the filter channel to
maintain a leak-tight seal.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Guide Specifications

1.0 General

1.1 Alpha 95 filters shall be extended media (separator type) (Pureform separatorless type) filters
as manufactured by Flanders.

1.2 Filter sizes, capacities and construction options
shall be as scheduled on the drawings.

fil

1.3 Filters shall be (UL 900 Class 1)( UL 900 Class
2) listed.
2.0 Filter Construction

2.1 The filter pack shall be constructed by pleating a
continuous sheet of non-woven water-resistant
fiberglass media around hemmed-edge corrugated aluminum separators. The filter pack shall
be constructed by pleating a continuous sheet of
formed, corrugated medium so that the pack is
self-supporting without the use of spacers of any
kind, including separators, tape strings, adhesives or strips of media.

2.2 The filter pack shall be sealed into a (galvaneal)
(409 stainless steel) (304 stainless steel) (particleboard) (fire retardant particleboard) (fire
retardant plywood) frame with a fire retardant
(polyurethane foam) ( solid urethane) sealant.
(Steel frames shall be 16 ga.) (Wood frames
shall be 3/4” thick.)
2.3(A 40-durometer closed-cell neoprene gasket)
(Silicone gel in a channel) shall be provided on
one or more sides to seal the filter in the mounting device.
3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 The rated minimum efficiency of 95% on 0.3
micrometer size particles shall be as determined
by the DOP Test Method

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Alpha Cell
HEPA Filters

Testing
Flanders individually tests and certifies each Alpha
Cell HEPA Filter to meet the customer’s requirements for resistance and efficiency (penetration) at
the filters nominal rated capacity. This information
appears on a test label affixed to the filter. When
used with correctly selected and installed mounting
frames or housings, Flanders Alpha Cell HEPA
Filters will easily pass an in-place validation test to
determine the overall system efficiency.

Scan Tested HEPA Filters

Flanders offers a complete line of Alpha Cell HEPA
Filters in two efficiencies to meet the needs of critical applications where HEPA filtration is required.
Individual testing, rigid quality control and modern
assembly methods are used to ensure conformance to specifications. Alpha Cell HEPA and
ULPA Filters are either UL 900 Class 1 or Class 2
listed.

persed oil aerosol of 0.30 micrometer size. Filters
rated for flows greater than 1000 cfm are tested
using a polydispersed oil aerosol. By measuring the
upstream and downstream concentration of these
particles with a light scattering photometer, the penetration can be determined and the efficiency can
be calculated.

Each Scan Tested Alpha Cell HEPA filter has a minimum efficiency of 99.99% on 0.30 micrometer particles. Scan testing is in accordance with Section
6.2 of IEST-RP-CC034.1, HEPA and ULPA Filter
Leak Tests. In the scan test, the filter is challenged
with a high concentration of an approved oil aerosol
or PSL (Polystyrene Latex Spheres). The media
pack and pack-to-frame seal is scanned using a
photometer or particle counter to ensure that there
are no leaks greater than .01% of the upstream
concentration at 100 fpm face velocity.

General

or
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See component chart on page 83.

Higher Efficiency ULPA Filters

HEPA FILTERS

Flanders can provide Pureform® and Separator
Style ULPA Filters with efficiencies up to 99.9995%
on 0.12 micrometer size particles. Please contact
the factory for more information.

Each Alpha Cell HEPA Filter has a minimum efficiency of 99.97% on 0.30 micrometer size particles
when tested at rated capacity on a Q-107
Penetrometer. Filters rated for 1000 cfm or less are
challenged with an approved nearly monodis-

Hospitals
Biomedical
Pharmaceutical
Biotechnology
Genetic Research
Universities
Laboratories
Food Processing
Photo Processing
Semiconductor Fabrication
Industrial Processing Systems

fil

•
•
•
•
•
•
•
•
•
•
•

Typical applications for
Alpha Cell Filters include:

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Alpha Cell HEPA Filter Dimensions and Capacities
CFM Dimensions and Capacities

650
300
615
275
830
135
325
145
25
70
305
270
410
505
680
860
1035
525
640
865
1090
1315
790
1050
1315
1580

1000
455
945
425
1275
205
500
225
35
105
470
415
635
775
1045
1320
1590
810
985
1330
1680
2025
1215
1620
2025
2430

1300
590
1235
550
1655
265
650
295
45
135
610
540
825
1010
1360
1715
2065
1055
1280
1730
2185
2630
1580
2105
2630
3160

fil

Flanders manufactures both conventional
Separator Style and Pureform Separatorless
HEPA Filters. To make a Separator Style filter,
the media is folded over corrugated aluminum
separators with hemmed edges to separate the
pleats in the filter pack. Flanders manufactures
its own filter media, enabling it to develop a
unique manufacturing process for the production of Pureform Separatorless HEPA Filters. In
one manufacturing operation, Flanders produces a self-supporting and self-separating
Pureform Media Pack. The Pureform Filter
Alpha Cell with
offers many advantages over conventional
Separator Style
Separator Style HEPA Filters:
Media Pack
• More usable media area for longer service
life because of higher dust holding capacity
• Reduced cost of ownership because of
longer service life
• Maximum utilization of the media
• Can handle some harsh environments
which may attack aluminum separators
• Media pack can be incinerated
• Media is 28 mils thick, which is significantly
thicker than conventional 15 mil media
Alpha Cell with
used in Separator Style HEPA Filters
Pureform Media Pack

38
26
37
25
45
14
20
12
6
9
18
23
26
33
39
32
46
26
30
37
44
52
33
41
49
59

24x24
24x12
23-3/8 x 23-3/8
23-3/8 x 11-3/8
24x30
12x12
24x24
24x12
8x8
12x12
23-3/8 x 23-3/8
23-3/8x11-3/8
24x30
24x36
24x48
24x60
24x72
30x30
30x36
30x48
30x60
30x72
36x36
36x48
36x60
36x72

Weight
(LB.)

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CFM Capacity at Clean
Pressure Drop, inches w.g.
.65
1.0
1.35

5-7/8

CG-F
GC-F
YY-F
YU-F
GN-F
CC-F
GG-D
GC-D
BB-D
CC-D
YY-D
YU-D
GN-D
GP-D
GQ-D
GR-D
GS-D
NN-D
NP-D
NQ-D
NR-D
NS-D
PP-D
PQ-D
PR-D
PS-D

Actual Face
Size (inches)

11-1/2

Filter Size and
Frame Depth
Designator

Frame Depth
(Inches)

Frame Materials
AlphaCell Filters are available in a variety of wood and metal frame materials such as particle board, plywood, galvanized steel and stainless steel.

or
e

Gasket and Fluid Seal

The standard gasket seal is 0.75” x 0.25” neoprene for installation on either the upstream, downstream or
both sides of the filter. The standard Fluid Seal is Flanders Blu-Jel® Seal which is a two-part silicone material suitable for temperatures up to 390°F.

st
Fluid
Seal
Channel
On Filter

Frame or
Housing

Blu-Jel
Seal

Faceguards (Optional)

Knife Edge
On Frame or
Housing

Filter

Gasket
Seal

UL Listings
Alpha Cell Filters are either UL900 Class 1 or Class 2 listed depending on materials of construction.

Holding Frames and Housings

fil

Alpha Frame, B1 Frame, A-4 Frame

Surelock HEPA Housing

Surelock HEPA Filter Housings are recommended for side-access applications. The filters are sealed in
place with either spring-loaded swing arm assemblies or a locking mechanism. The swing arm assemblies
or locking mechanism either compress the gasket or press the knife edge into the gel in the filter channel
to maintain a leak-tight seal.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Guide Specifications

1.0 General

1.1 Alpha Cell HEPA filters shall be extended media
(separator type) (Pureform separatorless type) filters as manufactured by Flanders.
1.2 Filter sizes, capacities and construction options
shall be as scheduled on the drawings.

2.0 Filter Construction

1.3 Filters shall be (UL 900 Class 1)( UL 900 Class
2) listed.

fil

2.1 The filter pack shall be constructed by pleating a
continuous sheet of non-woven water-resistant
fiberglass media around hemmed-edge corrugated aluminum separators. The filter pack shall be
constructed by pleating a continuous sheet of
formed, corrugated medium so that the pack is
self-supporting without the use of spacers of any
kind, including separators, tape strings, adhesives
or strips of media.

2.2 The filter pack shall be sealed into a (galvaneal)
409 stainless steel) (304 stainless steel) (particle
board) (fire-retardant particleboard) (fire-retardant
plywood) frame with a fire retardant(polyurethane
foam) ( solid urethane) sealant. (Steel frames
shall be 16 ga.)(Wood frames shall be 3/4” thick.)
2.3

(A 40-durometer closed-cell neoprene gasket)

(Silicone jel in a channel) shall be provided on one
or more sides to seal the filter in the mounting
device.

3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 Alpha Cell HEPA Filters shall have a minimum efficiency of 99.97% on 0.30 micrometer particles
when tested at rated capacity on a Q-107
Penetrometer Each filter shall be challenged with
an approved nearly monodispersed oil aerosol of
0.30 micrometer size.Measure the upstream and
down stream concentration of these particles with
a light scattering photometer, determine the penetration and calculate the efficiency.
3.3 Alpha Cell Scan Tested HEPA Filters shall have a
minimum efficiency of 99.99% on 0.30 micrometer
particles. Scan Testing shall be in accordance with
Section 6.2 of IEST-RP-CC034.1. The scan test
shall consist of challenging the filter with a high
concentration of an approved oil aerosol or PSL
Spheres.Utilizing a photometer or particle counter,
the media pack and the pack- to- frame seal shall
be scanned to insure that there are no leaks
greater than .01% of the upstream concentration
at 100 fpm face velocity

Alpha 2000
High Capacity HEPA Filters

High Capacity Design

retardant urethane elastomer to provide a rigid
leak-free assembly.

The Alpha 2000 High Capacity HEPA filter is available in a nominal 12” depth configuration. It is
designed for optimum performance and low operating costs in both new and replacement systems.
With 40% more media area than the standard
capacity Alpha Cell filter, the Alpha 2000 saves
space, energy, and material and labor costs.

Save Energy

Alpha 2000 filters in a conventional HEPA filter
bank impose a lighter load on the fan when operated at conventional 250 fpm velocities during the life
of the filters. The Alpha 2000 99.97% and 99.99%
high capacity 24” X 24” X 12” filter has a clean pressure drop of 1.1 inch w.g. at 1500 cfm, compared to
standard Alpha Cell filters with a clean pressure
drop of 1.50 inch w.g. at the same air flow.

Save Space
Alpha 2000 HEPA filters operate at 500 fpm (2000
cfm for a 24” x 24” size) at 1.45 inch w.g. clean
pressure drop versus conventional Alpha Cell filters
that operate at 250 fpm and 1.0 inch w.g. clean
pressure drop.

or
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See component chart on page 87.

Savings are significant with high capacity Alpha
2000 filters. They operate at lower velocities and
provide life cycles up to three times the life of standard capacity filters. Savings are achieved in
replacement materials and labor costs as a result of
fewer filters.

Construction

Save Replacement Material and Labor
Costs

A popular construction option consists of 16 ga.
galvaneal frames and moisture-resistant microfine
wet-laid fiberglass media folded over hemmededge low amplitude corrugated aluminum separators. The filter pack is bonded to the frame by a fire-

Important Features

• Efficiencies are 99.97% and 99.99% on 0.30
and 99.9995% on 0.12 micrometer particles.

fil

• High capacity Alpha 2000 filters can reduce the
filter bank size
• Corrugated aluminum separators stabilize the
moisture-resistant media pack (separator style)

• Available as a separatorless media filter with a
self-supporting media pack (*Pureform)

• Available in a variety of frame materials in gasket or fluid seal design.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Alpha 2000 HEPA Filter Dimensions and Capacities
Actual Face Size
(Inches

CFM Capacity at Clean
Pressure Drop, Inches w.g.
.90
1.45
1.90

11-1/2

CG-F
GC-F

24x24
24x12

1375
650

2000
920

2560
1180

YY-F
YUF

23-3/8x23-3/8
23-3/8x11-3/8

1350
610

1900
865

2450
1150

GN-F
CC-F`

24x30
12x12

1750
290

2550
430

3250
550

Weight
(lbs)

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Filter Size and Frame
Depth Designator

38
26

37
25
45
14

Filter Depth
(inches)

NOTE: The pressure drop for fluid seal (Separator or Pureform) and scan tested Pureform
filters will be approximately 15% higher.

Separator or Separatorless

Alpha 2000 with
Separator Style
Media Pack

The Pureform Filter offers many advantages
over conventional Separator Style HEPA
Filters:

• More usable media area for longer service life because of higher dust holding
capacity

• Reduced cost of ownership because of
longer service life

• Maximum utilization of the media

• Can handle some harsh environments
which may attack aluminum separators

fil

• Media pack can be incinerated

Alpha 2000 with
Pureform Media
Pack

• Media is 28 mils thick, which is significantly thicker than conventional 15 mil
media used in Separator Style HEPA
Filters

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Frame Materials

Gasket and Fluid Seal

or
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Alpha 2000 Filters are available in a variety of wood and metal frame materials such as particle board, plywood, galvanized steel and stainless steel.

The standard gasket seal is 0.75” x 0.25” neoprene for installation on either the upstream, downstream or
both sides of the filter. The standard Fluid Seal is Flanders Blu-Jel® Seal which is a two - part silicone material suitable for temperatures up to 390°F.

Gasket
Seal

Knife Edge
On Frame or
Housing

Filter

Fluid
Seal
Channel
On Filter

Frame or
Housing

Blu-Jel
Seal

Faceguards (Optional)

Frame or
Housing

UL Listings

Alpha 2000 Filters are either UL900 Class 1 or Class 2 listed depending on materials of construction.

fil

Holding Frames and Housings

Alpha Frame, B1 Frame, A-4 Frame

Surelock HEPA Housing

Alpha Frames are designed for Alpha 2000 filters in built-up filter banks. Each filter is secured in the frame
with four bolt-type fasteners that either compress the gasket or press the knife edge into the gel in the filter
channel to maintain a leak-tight seal.

Surelock HEPA Filter Housings are recommended for side-access applications. The filters are sealed in
place with either spring-loaded swing arm assemblies or a locking mechanism. The swing arm assemblies
or locking mechanism either compress the gasket or press the knife edge into the gel in the filter channel
to maintain a leak-tight seal.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Guide Specifications

1.0General

1.1 Alpha Cell HEPA filters shall be extended media
(separator type) (Pureform separatorless type)
filters as manufactured by Flanders.
1.2 Filter sizes, capacities and construction options
shall be as scheduled on the drawings.

1.3 Filters shall be (UL 900 Class 1)( UL 900 Class
2) listed.
2.0 Filter Construction

fil

2.1 The filter pack shall be constructed by pleating a
continuous sheet of non-woven water-resistant
fiberglass media around hemmed-edge corrugated aluminum separators. (or) The filter pack
shall be constructed by pleating a continuous
sheet of formed, corrugated medium so that the
pack is self-supporting without the use of spacers of any kind, including separators, tape
strings, adhesives or strips of media.

2.2 The filter pack shall be sealed into a (galvaneal)
409 stainless steel) (304 stainless steel) (particle board) (fire-retardant particleboard) (fireretardant plywood) frame with a fire
retardant(polyurethane foam) ( solid urethane)
sealant. (Steel frames shall be 16 ga.)(Wood
frames shall be 3/4” thick.)
2.3 (A 40-durometer closed-cell neoprene gasket)

(Silicone jel in a channel) shall be provided on
one or more sides to seal the filter in the mounting device.

3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2

Alpha Cell HEPA Filters shall have a minimum
efficiency of 99.97% on 0.30 micrometer particles when tested at rated capacity on a Q-107
Penetrometer Each filter shall be challenged
with an approved nearly monodispersed oil
aerosol of 0.30 micrometer size.Measure the
upstream and down stream concentration of
these particles with a light scattering photometer,
determine the penetration and calculate the efficiency.

3.3 Alpha Cell Scan Tested HEPA Filters shall have
a minimum efficiency of 99.99% on 0.30 micrometer particles. Scan Testing shall be in accordance with Section 6.2 of IEST-RP-CC034.1.
The scan test shall consist of challenging the filter with a high concentration of an approved oil
aerosol or PSL Spheres. Utilizing a photometer
or particle counter, the media pack and the packto- frame seal shall be scanned to insure that
there are no leaks greater than .01% of the
upstream concentration at 100 fpm face velocity

Alpha HT
High Temperature HEPA Filters

General

or
e

See component chart on next page.

Sealant Types

Two types of sealants for high-temperature HEPA
filters are offered.
Silicone Sealant

This is a high temperature (RTV) silastic-sealant silicone compound rated for continuous service up to
500°F(260°C). NOTE: This high-temperature
sealant is not UL 586 approved.

HEPA Filters

The glass pack seal is rated for continuous service
up to 1,000°F(540°C) in exhaust air applications
only. It is a mat of submicron glass fibers that creates a seal when compressed between the filter
pack and filter frame. The glass packing is not an
adhesive seal but a mechanical seal that functions
much as the glass fiber medium of the filter itself.
NOTE: Due to the possibility that the glass pack
may shed glass fibers, the glass pack sealant
should be used for exhaust systems only.

Scan Tested HEPA Filters

Glass Pack Sealant For Exhaust Air Only

Each HEPA filter has a minimum efficiency of
99.97% on 0.30 micrometer size particles when
tested at rated capacity on a Q-107 Penetrometer.
Each filter is challenged with an approved nearly
monodispersed oil aerosol of 0.30 micrometer size
and by measuring the upstream and downstream
concentration of these particles with a light scattering photometer, the penetration can be determined
and the efficiency can be calculated.

Flanders manufactures metal-frame separator-style
HEPA filters for applications with high-temperature
requirements up to 1,000°F (540°C) for exhaust air
only and 500°F (260°C) for supply air. High-temperature filters are available with either a gasket or
fluid seal. Filters with Blu-Jel® Fluid Seal have a
maximum service temperature of 390°F (199°C)

Each Scan Tested HEPA filter has a minimum efficiency of 99.99% on 0.30 micrometer particles.
Scan testing is in accordance with Section 6.2 of
IEST-RP-CC034.1, HEPA and ULPA Filters Leak
Tests. In the scan test, the filter is challenged with
a high concentration of an approved oil aerosol or
PSL (Polystyrene Latex Spheres). The media pack
and pack-to-frame seal is scanned using a photometer or particle counter to insure that there are
no leaks greater than .01% of the upstream concentration at 100 fpm face velocity. Scan testing is
only available for the 500°F model.

fil

Alpha HT Filter Dimensions and Capacities

Filter Depth
(Inches)

11-1/2

CFM CAPACITIES AND DIMENSIONS

Filter Size and
Frame Depth
Designator

GG-F
GC-F
YY-F`
YU-F
GN-F
CC-F

Actual Face
Size (Inches)

24x24
24x12
23-3/8x23-3/8
23-3/8x11-3/8
24x30
12x12

CFM Capacity at Clean
Pressure Drop, Inches w.g.
.65
1.0
1.35

650
300
615
275
830
135

1000
455
945
425
1275
205

1300
590
1235
550
1655
265

Weight
(Lb.)

38
26
37
25
45
14

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Guide Specifications

3.0 Performance

1.0 General

1.1 High temperature separator style HEPA filters
shall be Alpha HT models as manufactured by
Flanders.

2.0

Filter Construction

1.2 Filter sizes, capacities and construction options
shall be as scheduled on the drawings.

2.1 The filter pack shall be constructed by pleating a
continuous sheet of non-woven water-resistant
fiberglass media around hemmed-edge corrugated aluminum separators.

fil

2.2 The filter pack shall be sealed into a (409 stainless steel) (304 stainless steel) frame with a
high temperature silicone sealant rated for 500°F
or a glass pack sealant rated for 1,000°F in
exhaust applications.

2.3 (A chlorastic silicone gasket) (a woven glass
gasket) shall be provided to seal the filter in the
mounting device (Gasket Seal). A silicone gel
shall be provided in a channel on one side to
seal the filter in the mounting device. filters with
silicone gel have a maximum service temperature of 390°F (Gel Seal)

3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 Alpha HT HEPA Filters shall have a minimum
efficiency of 99.97% on 0.30 micrometer particles when tested at rated capacity on a Q-107
Penetrometer. Each filter shall be challenged
with an approved nearly monodispersed oil
aerosol of 0.30 micrometer size. Measure the
upstream and downstream concentration of
these particles with a light scattering photometer,
determine the penetration and calculate the efficiency.
3.3 Alpha HT Scan Tested HEPA Filters shall have
a minimum efficiency of 99.99% on0.30micrometer particles. Scan Testing shall be in accordance with Section 6.2 of IEST-RP-CC034.1.
The scan test shall consist of challenging the filter with a high concentration of an approved oil
aerosol or PSL Spheres. Utilizing a photometer
or particle counter, the media pack and the packto-frame seal shall be scanned to insure that
there are no leak greater than .01% of the
upstream concentration at 100 fpm face velocity.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Superflow 2K
®

High Velocity HEPA Filter

or
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20 Gauge Galvaneal: SF2K-8-G*-** 0.063” Aluminun: SF2K-5-G*-**
20 Gauge 304 Stainless: SF2K-3-G*-**
(Where * indicates gasket location and ** designates size. See price book)

Product Options

Flanders Superflow 2K is a V-bed HEPA filter
(99.99% at 0.30 micrometer) specifically designed
for high airflow applications requiring HEPA efficiency at an ultra low pressure drop. The Superflow
2K can be incorporated into systems with air velocities of 500 fpm and a pressure drop of 1.0 inch w.g.

The Superflow 2K filters are available in aluminum
or stainless steel frames and with gasket seal or gel
seal design.

Gel Seal

The filter gasket is Flanders Blu Jel filled into a
channel around the perimeter of the frame. The gel
seal design provides the highest degree of sealing
integrity between the filter and holding device. The
filter is designed for installation into Flanders front
load A-4 holding frame or Surelock-C Jel Seal
Housings.

The frame is constructed of 16 ga. galvaneal steel
and consists of vertical support struts of the same
material. Vertical supports are attached to the
frame body without the use of mechanical fasteners. The vertical supports act as the sealing surface
of the mini pleat packs.

The Superflow 2K filters are manufactured with wet
laid microfine fiberglass media. The media is
formed into a minipleat utilizing a hot melt separator and arranged in a V-bed configuration. There
are 10 individual minipleat packs that are sealed on
all four sides to the frame with a two component
polyurethane.

The filter gasket is 1/4” x 3/4” black neoprene
attached to the frame with an adhesive and the
gasket joints are dovetailed to ensure no penetration of particulate due to the gasket. The filter is
designed for installation into Flanders front load B1 holding frame, Surelock C Gasket Seal Housing
and Surelock-B Side Access Housing.

Product Design

Gasket Seal

General

Features and Benefits

The product offers the following advantages over
conventional HEPA filters.

• Longer Life – Gasket seal Superflow 2K filters
have 290 sq. ft. of media compared to 140 sq. ft. for
traditional HEPA filters. The greater media area provides a longer time period between filter replacements.

fil

• Improved Efficiency – The significant quantity of
media translates into an extremely low media
velocity. Therefore a minimum overall efficiency of
99.99% at 0.30 µm is easily assured. Traditional
HEPA filters have an overall efficiency of 99.97% at
0.30 µm.

• Lower Operating Cost – The typical HEPA filter
pressure drop can range from 1.4 inch w.g. to 1.8
inch w.g. at the rated flow. The pressure drop of the
Superflow 2K is 1.0 inch w.g. at the rated flow.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Superflow 2K Performance

or
e

The Superflow 2K filters offer HEPA efficiency at an
ultra low pressure drop for HVAC systems supplying
air to critical areas.
Figure 1 illustrates the Superflow 2K pressure drop
as a function of air flow rate for gasket seal and gel
seal designs.

Superflow 2K Selection

All products have a rated overall efficiency of
99.99% at 0.30 µm and a maximum pressure drop of
1.0 inch w.g. at the rated flow. Specify the following:
8 = Galvanized
5 = Aluminum
3 = Stainless Steel
Gasket Types:
G = Neoprene F = Blu Jel
Gasket Locations: 1 = Upstream
2 = Downstream

Actual Size

Media Area

Rated Flow

SF2K-(*)-G(location)-GG

24" x 24" x 12"

24" x 24" x 11-1/2"

290 sq. ft.

2000 cfm

SF2K-(*)-G(location)-CG

12" x 24" x 12"

12" x 24" x 11-1/2"

140 sq. ft.

900 cfm

SF2K-(*)-G(location)-YY

24" x 24" x 12"

23-3/8" x 23-3/8" x 11-1/2"

280 sq. ft.

1900 cfm

SF2K-(*)-G(location)-UY

12" x 24" x 12"

11-3/8" x 23-3/8" x 11-1/2"

135 sq. ft.

855 cfm

SF2K-(*)-F(location)-GG

24" x 24" x 12"

24" x 24" x 11-1/2"

270 sq. ft.

1760 cfm

SF2K-(*)-F(location)-CG

12" x 24" x 12"

12" x 24" x 11-1/2"

130 sq. ft.

790 cfm

SF2K-(*)-F(location)-YY

24" x 24" x 12"

23-3/8" x 23-3/8" x 11-1/2"

260 sq. ft.

1670 cfm

SF2K-(*)-F(location)-UY

12" x 24" x 12"

11-3/8" x 23-3/8" x 11-1/2"

125 sq. ft.

750 cfm

Insert Material Type

1.0 General

Nominal Size

Model Number

Material Types:

Guide Specifications

1.2 Filter sizes, efficiencies and capacities shall be
as specified on the drawings.

2.2The filter frame shall be 20 ga. galvaneal steel and
shall consist of eight C-channel supports
attached without the use of mechanical fasteners. The media packs shall be sealed around the
entire periphery to the frame with a two component polyurethane.

2.0 Construction

3.0 Performance

2.1 Filters shall be constructed with ten 1” pleated
media packs arranged in a V-bank configuration.
The media packs shall be formed by pleating wet
laid micro-fiberglass media with continuous
beads of a nonvolatile adhesive spaced 1-1/4”
apart.

3.1 The minimum filter efficiency shall be 99.99% at
0.30 µm when tested with polydisperse DOP
aerosol at the rated air flow.

fil

1.1 HEPA filters shall be Flanders Superflow 2K as
manufactured by Flanders.

3.2 The maximum pressure drop shall be 1.0” w.g. at
the rated air flow.

Alpha Panel
Minipleat HEPA/ULPA Filters

or
e

Models AP*-xxxx
(Where * indicates efficiecy designator of 493 for 99.99% efficient on 0.30
micron particles or 591 for 99.995% efficient on 0.12 micron particles.)

General

Media: Moisture-resistant microfine fiberglass
Filter pack: 2.1” (53 mm) separatorless minipleat
Media sealant: Urethane
Pleat stabilizers: Polyurethane bead separator
Frames: Clearcoat-anodized extruded aluminum
Media dividers: Extruded aluminum channel
Gaskets: Closed cell neoprene

Filter media is manufactured of moisture resistant
microfine fiberglass that is formed into closelyspaced pleats held firmly in place with polyurethane
sealant bead separators. The 2.1” (53 mm) separatorless minipleat panel is urethane sealed into a
clearcoat- anodized extruded aluminum frame.
Media dividers are furnished on all filters over 36”
width. Filters over 24” height are also furnished
with media dividers and pleats that are parallel to
the width.

Physical Data

Construction

Filters of standard construction may be operated at
up to 150 fpm face velocity and to a final static pressure drop of 2.0 inch w. g. As with all HEPA and
ULPA filters, high efficiency ASHRAE-rated prefilters are recommended.

Alpha Panel Minipleat HEPA/ULPA filters are available in two particle size efficiencies: 99.99% on 0.3
µm and 99.99% on 0.12 µm. They are offered in a
complete range of standard sizes to meet the needs
of critical applications where HEPA/ULPA filtration
is required. Individual testing under rigid quality
control and modern assembly methods ensures
conformance to specifications.

Alpha Panel HEPA/ULPA filters can be furnished
with 0.25” thick x 0.75” wide closed cell neoprene
gaskets as an option on either side or both sides of
the face flanges.

Testing

Important Features
• Minipleat separatorless filter pack
• Thin and lightweight easy-to-handle units
• Rugged 3” deep clearcoat-anodized extruded aluminum frame
• Available in many standard sizes

fil

Each Alpha Panel HEPA/ULPA filter is scan tested
after assembly with automated laser equipment to
ensure that it has attained a particle size efficiency
of at least 99.99% on 0.30 µm or 99.99% on 0.12
µm. This performance meets the requirements of
the Institute of Environmental Sciences and
Technology (IEST) RP-1 for Type C or F filters.
Efficiency and pressure drop are certified on each
filter identification label.

Installation

Alpha Panel HEPA/ULPA filters are used in applications and equipment that require ultraclean air.
These may range from the fabrication of microelectronics, semi-conductors and medical devices to
aerospace, biotech and pharmaceutical manufacturing.
The standard face velocity range of 70 to 110 fpm
makes them ideal for unidirectional (laminar flow)
applications in clean benches, ceiling grids, fan
powered filter units, and horizontal flow wall modules.
95

3” depth,

Performance Data - Capacities and Dimensions

99.99% on
0.30 Fm

110

AP493-2424*

280

360

440

AP493-2448*

560

720

880

.35

.45

.55

Clean Filter Resistance (inch
99.99% on
0.12 Fm

AP591-2424*

280

360

440

AP591-2448*

560

720

880

.50

.65

.80

Clean Filter Resistance (inch

Cfm Capacity at
Gross Face Velocity,
fpm

or
e

Model Number

Actual
Dimensions
(inch)

Particle
Size
Efficiency

*Insert gasket designator: D, U, B or N. See Note 5.

.75” Flange (typical)

Performance Data Notes:

1. Physical Data
Media: Moisture-resistant fiberglass
Filter Construction: 2.1” (53 mm) thick separatorless
minipleat
Filter Frame: Clearcoat-anodized extruded aluminum
Media Divider: Extruded aluminum channel
2. Add 0.25” to the 3” depth for each gasket.
3. Media dividers are furnished on air filters over 36” in
width. Filters over 24” in height are also furnished
with media dividers and media pleats that are parallel to the width.

1. Filters are scan-tested for leaks after assembly and
are certified to be 99.99% on 0.30 Fm or 99.99% on
.012 Fm particles.Performance meets the requirements of IEST RP-1 for Type C or F filters.
2. Dimensional tolerances are +0” -.13”on height and
width, + 0.6” on depth and +.13” on diagonal dimensions.
3. Maximum operating conditions: 200 degrees F, 100%
RH.
4. Filters are designed to UL 900 Class 2 requirements.
5. Gasket location: Suffix D denotes a downstream gasket. Use suffix U for upstream, B for both upstream
and downstream gasketing and N if no gaskets are
required.

Drawing Notes:

Guide Specifications

1.0 General

1.1 Minipleat HEPA/ULPA filters shall be Alpha Panel
Model AP493 or AP591 as manufactured by
Flanders.

1.2 Filter sizes and capacities shall be as scheduled
on the drawings.

fil

1.3 Filter construction shall meet UL 900 Class 2
requirements.
2.0 Construction

2.1 The filter pack shall be 2.1” (53 mm) thick and
shall consist of moisture-resistant microfine fiberglass co taining a water-repellant binder. The
media shall be formed into closely spaced pleats
and stabilized with polyurethane bead separators.

2.3 Extruded aluminum media dividers shall be provided on filters over 36” wide and 24” in height.
2.4 Furnish 0.25” thick x 0.75” wide closed cell
neoprene gaskets on the face flanges when
required.
3.0 Performance
3.1 Particle size efficiency shall be certified to be not
less than 99.99% on 0.30 micron or 99.99% on
0.12 micron. Each filter is scan tested with automated laser equipment. Filters shall meet the
requirements of IEST RP-1 for Type C or F filters.
3.2 Initial resistance shall not exceed the scheduled
values.
3.3 Filters shall be capable of operating up to 150 fpm
face velocity.

2.2 The filter pack shall be urethane sealed in a
clearcoat-anodized extruded aluminum frame
3”deep.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Pureflo
Terminal HEPA/ULPA Filter Modules

or
e

99.99% on .3 microns: Models: PF†-493-xxxx-*
99.9995% on .12 microns, Models: PF†591-xxxx-*
(Where † is pack depth designator and • is collar diameter. See price book.)

Construction

Flanders Pureflo Terminal HEPA/ULPA Filter
Modules are lightweight low profile ducted units.
The mini-pleat filter packs are designed to provide
unidirectional airflow from tee-bar ceilings. Pureflo
modules are available in two sizes: nominal 24” x
24” and 24” x 48” with either 10” or 12” diameter
inlet collars. They are available in two particle size
efficiencies: 99.99% on .0.30 µm and 99.9995% on
0.12 µm and in three filter pack depths: 53, 70 and
100 mm

The heart of the Pureflo module is a state-of-theart minipleat filter pack sealed in an anodized
extruded aluminum casing forming the sides of the
module. The extruded aluminum center divider
holds ports for in-room damper adjustment and
measurement of the challenge aerosol. The one
piece hood/inlet collar is made of aluminum and the
inlet collar is dimpled to secure the flex duct retaining strap. A 20 ga. expanded steel white powdercoated face grille protects the media pack. Each
module is scan-tested after assembly to meet or
exceed IEST RP-1 requirements for a Type C or F
filter.

Pureflo Terminal HEPA/ULPA Filter Modules are
recommended for use in ultraclean applications.
They are ideal for fabrication of microelectronics,
semiconductors, and medical devices; and in aerospace, biotech and pharmaceutical production.

Installation and Application
Considerations

General

Pureflo Modules are available with either nominal
10” or 12” diameter inlet collars. One inch thick
vinyl-backed fiberglass insulation on the top and
sides of the module is also available.

Physical Data

Selection of the PF70 or PF100 models will help
reduce operating costs because of their lower
resistance and longer service life.

Options

Clips on the module’s top four corners are to be
used to secure seismic restraint wires. Polyfoam
gasket should be applied to the tee-bar surface on
which the module will rest.

The standard face velocity range of 70 to 110 fpm
is easily adjusted from the room side by a screwdriver operated damper. Static pressure and challenge aerosol measurements can be taken from a
separate room side port. Standard construction
allows the modules to be operated at a pressure
drop of 2.0 inches w.g.

Media: Water-resistant micro-fine fiberglass
Filter Construction: Separatorless minipleat
Sealant: Polyurethane
Filter Frame: Clearcoat-anodized extruded aluminum
Top: One-piece aluminum with dimpled inlet collar
Damper: Perforated aluminum, 14 ga.
Protective Grille: White powdercoat 20 ga. steel
Center Divider: Extruded aluminum rectangular
tube

fil

Important Features

• Scan-tested after assembly to meet or exceed IEST
RP-1 requirements for Type C and F filters

• Mini-pleat separatorless filter pack for a lightweight
and low profile design

• Choice of three filter pack depths: 53, 70 and 100 mm
(2.10, 2.76, and 3.96 inches)
• In-room air flow damper adjustment and challenge
aerosol ports
• One-piece aluminum hood/inlet collar
97

Cfm Capacity at Gross Face Velocity, Fpm

Actual Length
L (inches)

PF†-493-2424-*
23-5/8
99.99 on
PF†-493-2448-*
47-5/8
0.30 µm
Clean Filter Filter Resistance(inchw.g)
PF†-591-2424-*
23-5/8
99.9995 on
PF†-591-2448-*
47-5/8
0.12 µm
Clean Filter Resistance(“w.g)
† Insert filter pack depth in mm: 53, 70, or 100

PF53
70
280
560
.40
280
560
.55

Physical Data Notes:

90
360
720
.50
360
720
.70

PF70
110
440
880
.60
440
880
.85

70
280
560
.33
280
560
.45

5. Installed weight:
2424:

1. *Insert suffix 10 (nominal 10”collar) or 12 (nominal 12” collar).
Add “G” to suffix to designate the insulation option.

2448:

90
360
720
.42
360
720
.58

PF100
110
440
880
.50
440
880
.70

70
280
560
.23
280
560
.33

90
360
720
.30
360
720
.42

110
440
880
.37
440
880
.50

or
e

Model Number

Particle
Size
Efficiency
%

PF53P

F70P

F100

20lbs.

25lbs.

27lbs.

35lbs.

40lbs.

43lbs.

3. Maximum operating conditions: 200 ° F, 100%RH

6. D = 5 3/4” (PF 53)
D = 7 3/4” (PF 70, PF 100)
H = D + 2”

2. Tolerances: L and W: +0, -1/8” D: + - 1/8”

4. Modules are designed to UL 900 Class 2 requirements.

Guide Specifications

1.0 General

1.1 Terminal filter HEPA/ULPA Modules shall be
Pureflo Model PF as manufactured by Flanders
and shall be scan tested for leaks after assembly.

fil

1.2 Module sizes, filter pack depth, efficiencies and
capacities shall be as scheduled on the drawings.
2.0 Module Construction

2.1 The module filter pack shall be constructed of
water-laid microfine fiberglass media containing
a water-repellent binder. The media shall be
formed into closely - spaced pleats held in position by adhesive bead separators.
2.2 The filter pack shall be polyurethane-sealed into
a clear coat - anodized extruded aluminum
frame and rectangular tube section center
divider.
2.3 Module top/inlet collar shall be one-piece aluminum.

2.4 The protective face grille shall be 20 ga. expanded steel finished in white powder coat paint.
2.5 Provide an airflow damper adjustable from the
room side and accessible through a port with a
removable plug located in the center divider.
2.6 Provide a separate port in the center divider that
is open to the inlet side of the filter for measurement of static pressure and challenge aerosol
concentration. The port shall be fitted with a
removable plug.
3.0 Performance
3.1 Initial and final resistances shall not exceed the
scheduled values.
3.2 The airflow damper shall be capable of regulating the module face velocity from 70 fpm to 110
fpm.
3.3 Performance shall meet the requirements of
IEST RP - 1 for Type C or F filters.

Pureflo-FPM
Fan-Powered Terminal Filter Modules

Options
Nominal 10” or 12” duct collars for conditioned air
UL Class 1 dimple pleat HEPA filter
25-30% efficient pleated prefilter
Power cord for 115V modules
220V 50/60 Hz fan motor
277V 60 Hz fan motor
Integral dual polarity DC air ionizing bar
Neoprene Gasketed RSR filter pack
Power indicator light

Pureflo-FPM modules produce HEPA or ULPA filtered air at a velocity of 90 fpm + 15 fpm six inches
below the filter face. When using the solid state
speed control, the sound level 30 inch from the filter face is approximately 53 dbA (nc45) at a 90 fpm
average face velocity and an ambient sound level
of 25 dbA.

Construction

HEPA filter: Separatorless minipleat with waterresistant microfine fiberglass media 2.1” (53 mm)
on STD models, and 2.76” (70 mm) on RSR
models.
Fan Housing: Mil finish .063” aluminum
Protective Grille: Expanded 20 ga. steel, white powder-coated
Prefilter: Washable 20 ppi foam (pleated prefilter
optional)
Integral Fan/Motor Assembly: Backward-curved fan
with sealed bearings, direct-driven by a 115 volt
single phase 1/3 HP PSC continuous duty thermally protected motor.
Speed Control: A solid state speed control is also
standard on all voltages

•
•
•
•
•
•
•
•
•

Performance

Pureflo-FPM Fan-Powered Terminal HEPA/ULPA
Filter Modules are lightweight unitized low profile
units consisting of a fan/motor assembly and a
minipleat HEPA/ULPA filter pack, designed to provide unidirectional vertical airflow from tee-bar ceilings. The modules are available in two sizes: nominal 24” x 24” and 24” x 48”; and in two types: a
standard replaceable unit and a room side replaceable (RSR) unit. Module efficiencies are 99.99% on
0.3 micron particles or 99.9995% on 0.12 micron
particles.

leakproof seal. Removal of the filter does not disturb the enclosure. Neoprene gasketed filters are
available as an option. Modules include threaded
inserts with 1/4” eyebolts at each top corner for the
attachment of seismic restraint wires. Polyfoam
gasket material should be applied to the tee-bar
surfaces on which the modules rest.

General

or
e

Standard: PF-FPM*-xxxx-STD
Room Side: PF-FPM*-xxxx-RSR
(Where * is efficiency designator of 493 for 99.99% efficient on .3 micron
particles and 591 is 99.9995% efficient on .12 micron particles.)

Application and Installation Considerations

Pureflo-FPM modules are recommended for use in
clean- room applications for fabrication of microelectronics, semiconductors, and medical devices.

fil

The filters in standard modules are table-top
replaceable with the entire unit removed from the
ceiling. The filters in room side replaceable (RSR)
modules have an integral extruded channel filled
with cleanroom quality sealing gel. The filters are
clamped into the fan plenum against a continuous
knife edge that is embedded into the gel for a

Important Features

• Extremely quiet fan/motor assembly

• HEPA/ULPA filters are replaceable

• Filters are scan-tested after assembly to meet or
exceed IEST RP-1 requirements for Type C and F filters
• Minipleat separatorless filter pack for a lightweight
and low99profile design
• UL listed as a complete unit
99

Standard
Replaceable
Module
Model Number

PF-FPM-493-2424-RSR

PF-FPM-493-2424-STD

PF-FPM-493-2448-RSR
PF-FPM-591-2424-RSR
PF-FPM-591-2448-RSR

Top

Bottom

Nominal
Air Qty.,
Cfm
(Note 1)

23.87

23.63

360

1.68

PF-FPM-493-2448-STD 0.3 Fm

47.87

47.63

720

2.04

PF-FPM-591-2424-STD 99.9995

23.87

23.63

360

1.89

PF-FPM-591-2448-STD 0.12Fm

47.87

47.63

720

2.11

Particle
inches
Size
Efficiency, Module Module
%
99.99

Typical
115V
Running
Amps

Sensible Max. Avail.
Static Press.
Heat
for Prefilter,
Output,
inch w.g.
BtuH
(Note 4)

or
e

Length in

Room Side
Replaceable
Module
Model Number

659

0.86

800

0.72

742

0.76

828

0.57

Performance Data Notes:
1.Nominal air quantity based on 90 fpm velocity and the module’s gross face area.
2.All fan motors are 1/3 hp single phase; 1570 rpm at 115, 230 and 227V 60Hz, and 1310 rpm at 230V
50Hz. Full load amps: 2.4 at 115V; .94 at 230V and 277V, 60Hz.
3.Based at 80% of nominal air quantity.
4. Weights: 24x48: Std.= 66 lbs, RSR = 92 lbs.

Standard Replaceable Module

Room Side Replaceable Module

Guide Specifications

1.0 General

Fan-Powered Terminal HEPA/ULPA Filter
Modules shall be Pureflo-FPM as manufactured
by Flanders.

1.1

fil

1.2 Modules shall be UL listed as a complete unit.
1.3 Module sizes, electrical characteristics, efficiencies, capacities, and options shall be as scheduled
on the drawings.

with a gel and knife edge seal design
2.3 Fan housing shall be mill finish .063” aluminum.
2.4 The integral fan/motor assembly shall consist of a
backward-curved centrifugal fan with sealed bearings, direct-driven by a single phase 1/3 hp PSC
continuous duty thermally protected motor.
2.5 Motor speed shall be controlled by a solid state
speed controller.
3.0 Performance

2.1 Filters shall be the separatorless minipleat type
scan-tested after assembly to meet IEST RP-1
requirements. The filter’s protective grille shall be
expanded 20 ga. steel white powdercoat painted.

3.1 Modules shall produce HEPA or ULPA filtered air
at a velocity of 90 fpm + 15 fpm 6” below the filter
face.

2.0 Module Construction

2.2 Filters for STD models shall be 2.1” (53 mm), and
shall be sealed into an anodized aluminum frame.
Filters for RSR models shall be 2.76” (70 mm) and
shall incorporate an extruded aluminum frame

100

3.2 Using the solid state speed control, the sound
level 30” from the filter face shall be approximately 53 dbA at 90 fpm average face velocity and less
than 25 dbA ambient sound level.

FCP Carbon Pleat
Activated Carbon Adsorbers

Product Design

The FCP Series is available in standard capacity
and high capacity models in 2” and 4” depths.
200 Series - Standard Capacity
The filter media has a carbon mass loading of 7 oz.
per sq. yd. of material.
300 Series - High Capacity
The filter media has a carbon mass loading of 14
oz. per sq. yd. of material.

• Maximum Carbon Surface Area
- Optimizes Efficiency and Available Capacity

The FCP Series is available with three contaminant
specific activated carbon products.

• Exceptional Adhesion of Granules
- Precludes Carbon Dusting

Options

FCP Series filters are pleated activated carbon
filled nonwoven media sealed within a moisture
resistant beverage board frame. The uniqueness of
the product is the filter media. The polyester media
is filled with fine mesh activated carbon through the
depth of the media. The ultrapure carbon is thermally bonded to the polyester fibers providing superior product design and offering the following
advantages.

The FCP products offer exceptional performance in
efficiency and capacity compared with products
manufactured from carbon slurry media or carbon/polyester pads. Figure 1 on the reverse side
illustrates that the FCP efficiency is at least 30%
better than a carbon slurry pleat. The minimum
capacity is six times greater as shown in the table
below.

The Flanders FCP Series adsorbers are designed
for removal of malodorous compounds at low concentration levels. Utilizing the latest technology in
fine mesh activated carbon, the product provides
high removal efficiency of nuisance odors.

FCP Performance

FCP Series – Activated Carbon Filled
Nonwoven Media Adsorbers

or
e

Models FCP*xxxxx
(Where * indicates carbon type model of
201, 202, 204, 301, 302, 304. See price book.)

201 or 301 - Removal of VOC’s
202 or 302 - Removal of Acid Gases

• Minimizes Pressure Loss

204 or 304 - Removal of Alkaline
Gases

• Consistent Carbon Distribution
- Reduces Channeling

Product
Carbon Slurry

Capacity to
75% Breakthrough
1.6 grams

FCP 200 Series

25 grams

FCP 300 Series

63 grams

fil

This table illustrates
the differences in
overall capacity of
three carbon products.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

101

FCP Selection
Nominal Size
(inches)

Actual Size
(inches)

Media
Area
(sq. ft.)

FCP201-24242

24 x 24 x 2

23-3/8 x 23-3/8 x 1-3/4

2000

.55

FCP201-12242

12 x 24 x 2

11-3/8 x 23-3/8 x 1-3/4

1000

.55

FCP301-24242

24 x 24 x 2

23-3/8 x 23-3/8 x 1-3/4

2000

.65

FCP301-12242

12 x 24 x 2

11-3/8 x 23-3/8 x 1-3/4

1000

.65

FCP201-24244

24 x 24 x 4

23-3/8 x 23-3/8 x 3-3/4

2000

.40

FCP201-12244

12 x 24 x 4

11-3/8 x 23-3/8 x 3-3/4

1000

.40

FCP301-24244

24 x 24 x 4

23-3/8 x 23-3/8 x 3-3/4

2000

.50

FCP301-12244

12 x 24 x 4

11-3/8 x 23-3/8 x 3-3/4

1000

.50

Performance values stated may be averages typical of the products listed.
Contact factory for actual performance test reports on specific products.

Rated Flow
Initial
(cfm)
Resistance
(inch w.g.)

or
e

Model Number

1.0 General

Guide Specifications

1.1 Activated carbon filters shall be FCP Carbon
adsorbers as manufactured by Flanders.

2.2 The carbon granules shall be 30 x 50 US Mesh
with a carbon tetrachloride rating of 90%.
2.3 The carbon media shall be pleated without the
use of a support structure and sealed within a 22
point moisture resistant beverage board frame.

2.0 Construction

3.0 Performance

2.1 Filters shall be constructed of a carbon filled
polyester nonwoven media. Carbon granules
shall be thermally bonded to polyester fibers to
prevent release of carbon particulate into the air
stream.

3.1 The pressure drop and carbon content shall be
as specified on the drawings.

fil

1.2 Model numbers, sizes and capacities shall be as
specified on the drawings.

102

3.2 The filter shall be capable of removing toluene at
an efficiency of 90% at inlet concentration of 10
ppm and a filter face velocity of 500 fpm

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

PH Odor Control
Gas Phase Odor Control Air Filters

Examples of applications that might benefit from
such a filter include family residences, hotel rooms,
nursing facilities, athletic clubs and other areas with
odors that come from strong acids or strong bases.

Construction

Cotton and polyester pleat media is prepared by
immersion in a special sodium bicarbonate slurry,
then dried. Media is adhered to galvanized
expanded metal and deep pleated. Pleated pack is
encased and sealed within a moisture resistant
kraft board frame. This filter is offered in 1”, 2” and
4” depths in all of the most popular face sizes, plus
special sizes.

The secret of this filter’s odor effectiveness is sodium bicarbonate. It is basically an industrial version
of the baking soda you put in the fridge to remove
odors. The media fibers of the PH Odor Control
Pleat are coated with this material.

Fractional efficiency tests on the sodium bicarbonate treated filter medium showed it to perform better on particulates as well as on acid and alkaline
odors. Treatment caused no change in pressure
drop.

Many strong odors in living spaces come from
materials that are either strong acids or strong
bases. For example, sauerkraut smells up the
house because it is highly acidic. And the “ammonia” smell of urine is highly alkaline...a strong base.
The Flanders PH Odor Control Pleat is specifically
designed to bring both types of odor
molecules...acid or base...into a more neutral, PH
balanced, odor free state.

Bonus...better particulate filtration

Improves IAQ through odor abatement
and better particulate air filtration

or
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Models 82255.xxxxxx

And it is sodium bicarbonate’s natural ability to neutralize both acids and bases...balance their
PH...that makes the PH Odor Control filter effective
as a wide spectrum odor neutralizer.

Key Features

• Removes both acid and base type odors
• Works by reaching PH balance

fil

• Tested technology

• With sodium bicarbonate (baking soda)
• Odor removal PLUS better particulate
filtration

• Works on pet odor, cooking odor, body odor
and more

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

103

Sensory testing

Urine Odor

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The filter media shall be manufactured using fine
grain sodium bicarbonate (baking soda) at a rate of
2 grams per square foot of media. The baking soda
will be uniform through the thickness of the media.
A majority of individual media fibers will be coated
with the fine-grained baking soda. The sodium
bicarbonate coating will be adhered to the fibers.
Proof of fiber coating and uniformity through the
media is to be given in the form of electron microscopic photographs. The media will have a minimum SO2 efficiency of 40% at one hour when tested at the National Ambient Air Quality Standard
(NAAQS) at 1000 cfm.

Fractional Efficiency vs. Particle Diameter

Fractional Efficiency (%)

100

PH Odor Control Pleat

Standard 30% Pleat
60
40
20
0
0.1

Particle Diameter

2.5 g Filter Tested at 0.15 ppm SO2
at 1000 cfm, 72º F, 62% RH
Fractional Penetration

fil

Deodorization testing was run in sensory rooms. In
each room, a malodor source consisting of 100
grams of sauerkraut was placed behind a 20”x20”
box fan which recirculated the air. Attached to the
outlet of each fan was a
20”x20” filter. A filter
treated with baking soda
was attached to one and
an
untreated
filter
attached to the other.
The graph here illustrates results as rated by
20 panelists. Levels of
odor were rated on a 1 to
10 scale. Initially (after 1
hour), both rooms showed a high level of malodor.
As time passed, the room with the baking soda
treated filter generated lower odor scores. The 18
hour score is statistically significant at the 90% confidence level.

104

Media specification

Strong Food Odor

Odor level testing was conducted in jars set up specially for headspace odor
testing. Sensory evaluation was run 20 hours
after the jars had been
set up to allow for adequate equilibration. 20
panelists participated in
headspace odor level
testing. The malodor in
the headspace was isovaleric
acid
vapor
(Synthetic Sweat Odor)
that had passed through the filter material.
Untreated filter media was tested vs filter media
treated with baking soda. The chart shows the
average odor levels reported by panelists. A 1 to 10
scale was used, where 1 is no malodor and 10 is
extreme malodor. The difference in scores was statistically significant at the 99% confidence level.

Body Odor

Cat urine was tested
using the same apparatus and method as the
sauerkraut test.
The
odor source was a 6”x6”
carpet swatch that had
been sprayed with 0.70
grams of cat urine. The
chart at left shows the
perceived odor levels in
0
5 10 15 20
25
the rooms. The differences in score for hours
1 and 5 are statistically significant at the 90% confidence level.

1
0.8
0.6
0.4
0.2
0

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

8
10
Time (H)

Model C
50% Fill, models: C50-xxxxx

The carbon is retained within the honeycomb cells
by a non-woven nylon mesh on both sides of the filter. The honeycomb is given additional strength by
a moisture-resistant die-cut beverage board frame
(standard sizes) or U-channel beverage board
(special sizes). Each order is individually sealed in
plastic to retain the carbon efficiency prior to installation.

The Model C Disposable Carbon air filter is an
easy-to-install partial-bypass carbon type air purifier for light duty IAQ applications in home and commercial recirculated air systems. The filter uses
premium grade granular virgin coconut shell carbon
to remove odors by the adsorption process rather
than masking them with air fresheners. Odors are
controlled by surface adsorption on the carbon,
which has over one million square feet of surface
area per square foot of filter face area. Typical
household applications are the removal of odors
from bathrooms, cooking, smoking and entertaining. Commercial applications may include restaurants, schools, medical offices, beauty salons,
health clubs, and offices.

75% fill, models: C75-xxxxxx

Service Life

It is difficult to predict the life of any carbon filter. It
is a function of the concentration level of dust and
gaseous contamination for each specific application. Even though sensitivity varies with the individual, the human nose is still the best indicator of the
need to change a carbon filter.

General

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Disposable Carbon
Gas Phase Odor Control Filters

Physical Data

Construction

Frame: Moisture-resistant die-cut beverage board

A laminated cellulose honeycomb material forms
the base structure of the filter. The honeycomb provides for the exposure of a great amount of surface
area for full utilization of the carbon. Each individual
honeycomb cell is filled with granular activated carbon to either the 50% or 75% level. The 75% fill filter has a longer life than the 50% fill filter, but its airway pressure drop is greater.

Honeycomb: Laminated cellulose paper
Mesh Grid: Non-woven nylon

Activated Carbon: Granular virgin coconut shell base

Important Features

fil

• Low static pressure partial-bypass type odor
adsorber
• Premium virgin coconut shell activated carbon

• Completely disposable product

• Controls odors in many light duty applications

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

105

Standard Size Capacities and Dimensions

1-3/4

C75

11-1/2 x 23-1/2

600

2.00

2.75

15-1/2 x 19-1/2

660

2.25

3.00

15-1/2 x 24-1/2

830

2.75

3.75

19-1/2 x 19-1/2

830

2.75

3.75

19-1/2 x 24-1/2

1040

3.25

4.75

23-1/2 x 23-1/2

1200

4.00

5.50

11-1/2 x 23-1/2

600

4.00

5.50

15-1/2 x 19-1/2

660

4.50

6.00

15-1/2 x 24-1/2

830

5.50

7.50

19-1/2 x 19-1/2

830

5.50

7.50

19-1/2 x 24-1/2

1040

6.50

9.50

23-1/2 x 23-1/2

1200

8.00

11.00

Built-up filter banks with holding frames
are particularly easy to retrofit using
Model P fasteners. Model C carbon filters are ideal for use in the prefilter
track of the two-stage Sureseal filter
housing.

Notes:

The Model C carbon filter can be
installed with, or in some cases, instead
of an existing dust filter. If the filter track
is 2” thick, it is often possible to slide in
a 1” prefilter and a 1” carbon filter.

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C50

Installation

Carbon weight (lbs.)
per filter

Nominal cfm
at 300 fpm

3/4

Actual
HxW
(inch)

Actual
Depth
(inch)

1. Special size Model C filters are available. Contact your local representative or the factory.

2. Recommended maximum rated velocity is 500 fpm.

3. Pressure drop for clean Model C filters at 300 fpm face velocity is:
C50-1inch, .30 w.g. C50-2 inch, .25 w.g.
C75-1inch, .35 w.g. C75-2 inch, .30 w.g.

1.0 General

Guide Specifications

fil

1.1 Disposable carbon air filters shall be Model C as
manufactured by Flanders.
2.0 Filter Construction

2.1 Filters shall be constructed of laminated cellulose
paper honeycomb whose cells are partially filled
with granular virgin coconut shell base activated
carbon.

2.4 Filter frame shall be die-cut or U-Channel moisture-resistant beverage board.
2.5 Each order shall be sealed in plastic to retain
carbon efficiency prior to installation.
3.0 Carbon Fill
3.1 The minimum pounds of carbon per square foot of
filter face area shall be not less than:
C50-1” 0.80, C50-2” 1.75

2.3 Carbon shall be retained by a non-woven nylon
mesh.

C75-1” 1.13, C75-2” 2.50

2.2 Fill level shall be 50% or 75% as specified.

106

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Superflow-VC
Disposable Carbon Adsorber

Construction

Physical Data

Top and bottom end plates: High strength ABS plastic

Vertical struts: Aerodynamically-designed extruded
aluminum
Vertical supports: Steel rods on downstream side
Carbon panels: Eight one inch (25 mm) moisture
resistant corrugated kraft honeycomb grids filled
with granular activated carbon media contained by
fine mesh nylon screens on both air entering and
leaving sides

Superflow-VC Adsorbers consist of eight activated
carbon-filled panels arranged in a V configuration
and sealed with non-volatile adhesive into top and
bottom injection molded ABS plastic end plates.
The sealant completely eliminates bypass within
the cell. The end plates incorporate a single header to position the cell in holding frames or side
access housings.

Flanders Superflow-VC Disposable Activated
Carbon Adsorbers are designed for gaseous contamination control in both new and existing HVAC
systems. Superflow-VC Adsorbers have totaldetention capability with all air passing through the
carbon beds. These adsorbers can help mitigate
Indoor Air Quality problems in buildings where the
air must be cleansed of gaseous contaminants.
They are also useful in a variety of other applications such as the protection of light industrial
processes and works of art.

mesh nylon screens glued to the grid. The screens
act as a secondary prefilter and also as an afterfilter. The activated carbon media is premium HVAC
grade virgin coconut shell granules with a minimum
carbon tetrachloride (CTC) activity of 60% per
ASTM D-3467. Granules are 4 x 8 US mesh size
with a minimum apparent density of 0.49 g/mL. The
minimum hardness is 97 per ASTM D-3802 and the
minimum surface area is 1100 m2/g by the N2 BET
test method.

General

or
e

Models SFVC*-xxxxxx
(Where * indicates carbon type: 201, 202, 204, 205 or 209.
See Price book.)

Extruded aluminum vertical struts close off the
panel edges in front and are aerodynamically
designed to minimize airflow restriction and turbulence. Vertical steel rods on the downstream side
provide rigidity and minimize twisting and racking.

Activated carbon media: Virgin coconut shell base,
4 x 8 US mesh size, minimum 60% CTC activity
Operating limits: 150°F (65°C) and 95% RH, noncondensing

The activated carbon panels are constructed of
one” (25 mm) thick moisture-resistant corrugated
kraft honeycomb grids. The honeycomb is filled
with granular activated carbon held in place by fine

Panel sealant: Non-volatile type applied along the
entire periphery of the panel to eliminate air bypass

Features and Benefits

fil

• Total detention multi-panel design combines high adsorption efficiency with low pressure drop
• Entire cell is disposable so installation is clean, quick and easy

• Installation flexibility: adsorbers are suitable for both initial and
retrofit applications and in front or side access arrangements.

• Gaseous contamination control can be applied to most HVAC air
systems
• Impregnated carbons are available for control of difficult contaminants: H2S, acid gases, formaldehyde, ammonia, aldehydes and
amines

107

Superflow-VC Adsorbers in HVAC airstreams can
remove many gaseous contaminants thus mitigating their effects on people and processes. They are
especially useful in controlling common contaminants that cause poor indoor air quality (IAQ) in
commercial and industrial buildings such as office
buildings and hospitals.Typical applications and
controlled contaminants are:

Flanders K-Trac Framing Modules holding prefilters
and adsorbers are often chosen where 30 inches
(760 mm) of upstream service access space is
available. Flanders Sureseal Side Access Housings
are most often used for small systems and for systems where in-line service access space is limited.

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Application Considerations

SOx and NOx

Blueprint facilities

Ammonia

Carbon Type and Typical Applications

Food processing

Amines

(Weights are per 24 x 24 adsorber)

Loading docks

Diesel fumes

Museums

Aldehydes and acid gases

Office buildings

VOCs and aldehydes

Research facilities

Animal odors

Airports

Type 9 Holding Frames include gaskets on the
flange against which the adsorber header seals.
For side access housing applications, gaskets are
applied to the side of the adsorber header to
achieve an adsorber-to-adsorber and adsorber-todoor seals.

Residence Time

fil

Residence time is the period, usually a fraction of a
second, that the contaminant molecule is within the
boundaries of the media bed depth and is exposed
to adsorption capture and (for chemisorption)
chemical change. The efficiency of an adsorber is a
function of the bed residence time for a given contaminant and set of environmental conditions. The
longer the residence time, the greater the efficiency. Residence time is computed as: (bed area
exposed to airflow x bed depth) airflow rate.

Installation

TS 202- Impregnated for control of acid and malodorous gas absorption Carbon weight = 29 lb/13.1 kg

TS 204- Impregnated for control of ammonia and light
organic amines adsorption Carbon weight = 28
lb/12.6 kg
TS 205- Impregnated for control of aldehydes Carbon
weight = 29 lb/13.1 kg
TS 209- Impregnated for universal adsorption of both
acid and alkaline gases and vapors Carbon weight=
32 lb/14.9 kg

Light duty IAQ applications can usually be handled
by Superflow-VC units selected at 500 fpm (2.54
m/s) face velocity with a 0.030 second residence
time. Medium and heavy duty applications include
airports, engine exhaust, some industrial processes
and situations requiring impregnated carbon. For
these applications, adsorbers should be selected at
greatly reduced face velocities for a longer residence time.

TS 201- Virgin coconut shell- VOC (volatile organic
compounds) Carbon weight = 25 lb/11.4 kg

Model Number Development
SFVC

TS201

242412

Superflow
VC

Carbon
Type

Nominal
Size

SFVC-TS201-242412
Represents a Superflow VC Carbon
Adsorber with Type 201 carbon, nominal 24”
x 24” x 12” (610 mm x 610 mm x 305 mm)
with polyfoam gasket material shipped
loose.

Superflow-VC Adsorbers are not position sensitive.
Airflow may be through the header side face or the
opposite side face. The cell may be turned so that
the panels are vertical or horizontal. Wherever possible, adsorbers should be installed with panels vertical and air entering the header side face.

Refer to Superflow-VC Drawing for construction
details.

Frames and housings used for 12” (305 mm) deep
particulate filters are well-suited for Superflow-VC
adsorbers. In new construction, built up banks of
Flanders Type 9 Holding Frames and Clips or

108

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Physical Data:

Each Superflow-VC Adsorber is individually sealed
in a polyethylene bag prior to placement in a heavy
duty shipping carton. The bag protects the adsorber
from being expended prematurely and also facilitates clean and easy jobsite changeouts. The spent
adsorber can be placed in the plastic bag and then
in the carton for disposal.

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Packaging

Top and bottom end plates: High strength ABS
plastic
Vertical Struts: Aerodynamically designed
extruded aluminum
Vertical Supports: Steel rods on the
downstream side
Carbon Panels: Eight 1” (25 mm) moistureresistant corrugated kraft honeycomb grids filled
with granular carbon media contained by fine
mesh nylon screen
Panel Sealant: Non-volatile type, applied along
the entire panel periphery
Activated Carbon Media: Virgin coconut shell
base, 4 x 8 US mesh size, minimum 60% CTC
activity

Particulate contamination must be considered
when utilizing gas/vapor phase adsorbers. As a
minimum, a Flanders prefilter with an efficiency of
25-30% per ASHRAE Std. 52.1 should be installed
on the upstream side of the Superflow-VC adsorber
in order to extend the service life by significantly
reducing dirt build-up. Even higher efficiency prefiltration should be considered when system design
allows for additional space and static pressure.

Adsorber Protection

fil

Routine disposal is usually permitted if spent adsorbers with Superflow-VC 201 media have been used
for normal IAQ applications. Spent adsorbers filled
with impregnated carbon and those used in industrial applications may need special handling. Local
environmental authorities should be consulted prior
to disposal.

Disposal

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

109

Superflow-VC Performance Data
ADSORBER FACE VELOCITY, fpm
250
375

Adsorber
Nominal Size
Model Number H x W x D
(See Note 1)
inch
(See Note 2)

cfm

Res

SFVC-242412

500

0.10

0.11 1000 0.20 0.050 1500 0.33 0.040 2000 0.50 0.030

250

0.10

0.11

cfm

Res

cfm

Res

cfm

24 x 24 x 12

Adsorber
Nominal Size
Model Number H x W x D mm.
(See Note 1) (See Note 2)

0.64
m3/s

500

0.20 0.050 750

Res m3/s

Res

0.33 0.040 1000 0.50 0.030

ADSORBER FACE VELOCITY, m/s
1.27
1.90
Res m3/s

SFVC-122412

Cell
Weight
lb

500

or
e

125

Res

Cell
Weight
kg

2.54

m3/s

Res

0.11

0.47 0.05 0.050 0.71 0.08 0.040 0.94 0.12 0.033

SFVC-122412 305 x 610 x 305 0.12 0.02

0.11

0.24 0.05 0.050 0.35 0.08 0.040 0.47 0.12 0.033

15.5

SFVC-242412 610 x 610 x 305 0.24 0.02

Notes:

7.7

2. Actual size of adsorber header is 0.625” (16 mm)
under on face height and width; actual adsorber
depth is 11.5” (290 mm).

Adsorber
Size
Designator

3. “PD” represents clean pressure drop in inch w.g.
or kPa.
4. “Res” represents residence time in seconds.

Superflow-VC Carbon Weight Per Cell

1. *Insert Superflow-VC carbon type model number.

Superflow-VC Carbon Type

201

202

204

205

209
lb

242412

25 11.4 29 13.1 28 12.6 29 13.1 33 14.9

122412

13 5.9 14 6.3 14 6.3 14 6.3 16 7.2

Guide Specifications

1.0 Products

2.4 The cell shall be assembled with aerodynamically designed vertical front struts and vertical steel
rod supports on the downstream side.

1.2 Model numbers and capacities of the adsorbers,
particulate prefilters and holding frames or housings shall be as specified or as shown on the
drawings.

2.5 Each adsorber shall be sealed in a polyethylene
bag before being placed in its shipping carton.

fil

2.0 Construction

1.1 Activated carbon adsorbers shall be total-detention type Superflow-VC models as manufactured
by Flanders.

2.1 Adsorbers shall be constructed of multiple carbon-filled panels arranged in a V configuration.
Panels shall be 1” (25 mm) thick moisture-resistant corrugated kraft honeycomb sealed to top
and bottom end plates with non-volatile adhesive.

2.2 Panels shall be completely filled with 4 x 8 US
mesh size activated carbon held in place by
nylon screens.
2.3 Top and bottom end plates shall be injectionmolded high strength ABS plastic with integral
headers.

110

3.0 Performance
3.1 Activated carbon media shall be virgin coconut
shell base, minimum 60% CTC activity by the
ASTM D-3467 test method, minimum apparent
density of 0.49 g/mL, minimum hardness of 97 by
the ASTM D-3802 method and a minimum surface area of 1100m2/g by the N2 BET method.
3.2 The SFVC201-242412 model shall contain no
less than 25 lb (11.4 kg) of activated carbon. At
2000 cfm (0.94 m3/s) it shall have an airway
resistance no greater than 0.50 inch w.g. (0.12
kPa) and a residence time no less than 0.030
seconds.

110

Vaporclean
Vapor Phase Air Filter

or
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Models VC-xxxx-xx-xx-xxxx-xx
See price book

Product Options

The Flanders Vaporclean vapor phase adsorbers
are designed for removal of molecular contaminants at low concentration levels while utilizing the
proven technology of dry processed carbon composite media, (DPCC). The adsorbers provide high
efficiency removal of multiple contaminants for
applications within museums, archive storage facilities, airports and semiconductor fabrication facilities.

The Vaporclean adsorbers are available with five
contaminant specific dry processed carbon composites.

1501

Application

Effective removal of gas mixtures
consisting of aldehyde, acid gases
and hydrocarbons.

1076

Effective removal of
ozone,hydrocarbons & volatile organic
compounds.

1073

Effective removal of acid gases such
as SO2 and NO2.

1075

Effective removal of hydrogen sulfide,
H2S.

1090

Effective removal of alkaline gases
such as ammonia and other light
organic ammine compounds.

The carbon media is manufactured with a dry
processed carbon composite of ultrafine 30 x 50
mesh activated carbon with a minimum carbon
tetrachloride activity of 90% per ASTM D-3467. The
high efficiency carbon granules are thermally bonded to polyester nonwoven bicomponent fibers. The
pleated media pack is contained within a 24 ga galvanized steel casing and bonded with a polymide
hot melt adhesive to maintain rigidity and eliminate
air bypass. Pleat spacing and alignment is maintained with high impact polystyrene plastic separators installed on both air entering and leaving sides.

DPCC
Grade

Technical Description

Vaporclean

Important Features

fil

• Maximized carbon surface area
• Increased efficiency and capacity
• Low initial static pressure

• Consistent carbon distribution

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

111

Vaporclean Performance
The pressure drop of the Vaporclean is 0.35 inch w.g. at a face velocity of 500 fpm.
The initial efficiency of the adsorber under the following conditions shall be met.
Challenge
Concentration

Efficiency

Capacity @
50% Efficiency

25 ppm
30 ppm
5 ppm
500 ppb

>90%
>90%
>70%
>80%

560 grams
60 grams
100 grams
4 grams

Toluene
SO2
NO2
Formaldehyde

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Contaminant

Contaminant Matching
Match the Vaporclean media type to the
contaminant of concern.

1501
1501

Sample Model Number

Vaporclean

1501

Ozone

Application Media
Animal Odors1090
Diesel Exhaust
Cooking Odors
Museums 1073
Sewer Odors1075

Acid

HC
Hydrocarbons
HCOH Formaldehyde
AG
Gases
NH3
Ammonia
O3

Media type

2424

24 ga

Frame Style

Size

Gasket

Represents a Vaporclean, 24 ga galvanized steel frame, single header style, gasketed
downstream, with 1501 media. Actual filter size is 23-3/8 x 23-3/8 x 11-1/2”

fil

VC-1501-16-01-2424-GD

NOTE:
1. The 16-01 indicates a header style filter and 16-00 indicates a box style filter. Other frame materials, frame
styles and sizes are available. Consult the factory.
2. Maximum operating temperature is 120°F.

3. Frame Style: 01 for Single Header or 00 for Box Style
4. Gasket: 00 for not gasket or GU for gasket upstream or GD for gasket downstream

112

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

HMZD
High Mass and Zero Dust Bonded Carbon Panels

or
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Models HMZD-*-xxxxxxx-xx
(Where * represents carbon type: 201, 202, 204, 205, 209, 225 See
price book for complete model designation)

Carbon Selection

HMZD carbon panels are available from 3/8” to 3”
depths, and are easily installed in any existing side
or front access housing without the usual clean up
caused by carbon dusting. Bonded panels do not
need to be refilled, thus eliminating the labor associated with transporting trays. A high initial efficiency can be maintained with replacement panels
which are composed of 100% virgin carbon as
opposed to reactivated carbon.

HMZD carbon panels can be manufactured from
virgin carbon, where contaminant removal is
accomplished by physical adsorption or from
impregnated virgin carbon where contaminant
removal by chemical mechanisms are required.

Carbon Usages

• 201- Impregnate is virgin coconut shell carbon
for general removal of VOC’s
• 202- Caustic impregnated for removal of acid
gases
• 204- Acid impregnated for removal of alkaline
gases
• 205- Chromate impregnated for removal of
amines
• 209- Universal impregnate for removal of acid
and alkaline gases.

Indoor air quality problems found within museums,
schools, airports, semiconductor manufacturing
plants, waste water treatment facilities and hospitals can be solved by using HMZD carbon panels.
They offer a carbon solution for the removal of most
specific contaminants.

HMZD Carbon Types and Applications:

Providing Clean Air

General

Activated carbon is highly effective on many
gas phase contaminants:
• Fish odors
• Kitchen odors
• Stale odors
• Vinegar
• Liquor odors
• Mold
• Moth balls
• Onion odors
• Ozone
• Paint fumes
• Sewer odors
• Tobacco smoke
• Vinyl chloride
• Many process gases

fil

• Adhesives
• Alcohols
• Animal odors
• Asphalt fumes
• Auto exhaust
• Body odors
• Charred Materials
• Sour milks
• Turpentine
• Waste products
• Cleaning odors
• Cosmetics
• Jet engine exhaust
• Fertilizers

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
113

Pressure Drop

or
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HMZD Panels can be incorporated into V
shaped configurations with minimal pressure
drop and impact on the system.

Please note that the breakthrough test was
based on continuous 100 ppm Hexane challenge concentration. Testing conducted at an
independent lab on virgin coconut shell carbon.

Efficiency

fil

HMZD panels perform better than
loose filled systems due to increased
density of carbon and elimination of
air bypass

114

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Carbon Selection
In general, contaminants with a
boiling point greater than 100 C
can be effectively removed with
carbon type 201.
Contaminants with a boiling
point below 100 C require other
available types of impregnated
carbon such as type 202, 204,
205, 209.

Clean Air is Only a Block Away

or
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Flanders, through innovative technology, has
resolved the problems associated with loose filled
activated carbon trays by introducing HMZD bonded carbon panels.

HMZD stands for High Mass and Zero Dust. High
Mass refers to the greater density of activated carbon installed in each panel, and Zero Dust means
the filters will not release carbon dust into the air
stream. The panels are fabricated from 100% virgin coconut shell activated carbon with a minimum
60% CTC activity. The premium grade carbon is
bonded together during a sintering process to form
a rigid block and framed to provide clean air.

HMZD bonded panels are replaced right at the air
handling unit with the same quality 100% virgin carbon as the initial installation. Standard loose filled
tray systems are typically replaced with regenerated carbon minimizing adsorption performance.

The uniform air velocity through the bed eliminates
high velocity zones and bed fluidization. Bed fluidization is a major cause of continuous dusting in
loose granular system designs. HMZD bonded panels are non-dusting, therefore eliminating the need
for downstream after filters.

Cleaning the Air

Superior Performance

fil

HMZD panels provide superior adsorption performance because there is no settling within the carbon
bed. The carbon granules are bonded together to
provide a uniform density of sorbent media across
the panel eliminating air bypass and stratification
zones for high efficiency and extended service life.
The panel design creates uniform air flow distribution and uniform residence time ensuring maximum
removal efficiencies.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
115

Guide Specifications
5.0 Carbon Material

1.1 Molecular contamination control filters shall be
Flanders High Mass and Zero Dust (HMZD) bonded carbonpanels. Panels shall be self-supported
bonded granular carbon and be sized to fit into the
selected Flanders Pureseal front or side access
housing as well as competitive carbon systems.
Model numbers shall be as per schedule for application specific requirements.

5.1 The panels shall be composed of virgin coconut
shell granular activated carbon with a m i n i m u m
carbon tetrachloride (CTC) activity of 60% per
ASTM D-3437. The granular carbon shall be 4x8
US mesh size with an apparent density of 0.49
g/ml minimum. The minimum hardness shall be
97 per ASTM D 3802. The minimum surface area
shall be 1100 m2/g (N2BET Method) and the
moisture content shall not exceed 5%.

2.0 References

5.2 The carbon shall be Flanders Tech Sorb TS (carbon type model number) as designed for the
removal of (contaminant). The contaminant
removal capacity shall be (x%) by weight as (challenge).

3.1 The granular carbon shall be bonded together in
a briquette form so that the panel contains no
loose carbon; loose filled tray type systems are
not permitted.

Tech Sorb #

Capacity

201

24%

butane

20%

hydrogen sulfide

204

10%

ammonia

205

209

12%

202

3.3 The bonded carbon configuration shall not settle,
shall not particulate and shall not allow channeling
through the bed.

4.0 Packaging

3.4 The bonded panels shall be self-supporting and
when installed in the housing shall provide a continuous seal around its periphery.

Tech Sorb #

1“

hydrogen sulfide

3/4”

5/8”

7/16”

2.6

1.9

1.6

1.1

202

2.9

2.2

1.8

1.3

204

3.7

2.8

2.3

1.6

205

3.0

2.2

1.9

1.3

209

2.8

2.1

1.8

1.2

fil
e
th

formaldehyde

201

4.1 The panels shall be individually sealed into a
polyethylene bag prior to being boxed. Filters
shall be stacked on pallets and stretch wrapped.

116

Challenge

The mass of carbon in the filter shall be (x)grams/ft2

3.2 Panels shall be covered on both sides with a
white spun bonded polyester scrim and framed in
a galvanized (or stainless steel) channel; plastic
frames are not permitted. A black poly-butyl (or
silicone) gasket shall be affixed to one side of the
panel frame for front access designs.

3.0 Construction

2.1 ASTM test method D 3467-88, Standard Method
for Carbon Tetrachloride Activated, American
Society for Testing and Materials, Philadelphia,
1988.

or
e

1.0 General

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Techsorb

or
e

Chemical Media for
Gaseous Contaminant Removal

Models TS-*-B1
(Where * indicates chemical media designator. See price book.)

Shelf Life

Media Types and Applications

Techsorb TS-101 is a dry, activated alumina medi-

um, designed to be used in applications for the
removal of gaseous vapors such as hydrogen sulfide, mercaptans, sulfur dioxide and other malodorous and corrosive contaminants.

fil

Techsorb TS-101 has been used extensively in
applications ranging from Indoor Air Quality to
Corrosion Control and from Toxic Contaminants
Control to Industrial Odor Control. Within this broad
range of applications, it has been used to control
formaldehyde odors in autopsy wards and funeral
homes; odors from convalescent facilities, allowing
the reuse of ventilation air; in shopping malls to
prevent the cross contamination of food odors and
clothing shops; industrial computer rooms for the
prevention of electronics corrosion due to the highly reactive sulfides; in pharmaceutical facilities and
pet stores for the control of fugitive odor emissions.

Techsorb TS-201 is a dry, granular, activated carbon chemical medium, designed to be used in air
filter service for the removal of gaseous vapors
such as volatile organic compounds (VOC’s).
Typical VOCs controlled include benzene, ethylbenzene, toluene and xylene. Other organics con-

Techsorb TS-202 is a dry, granular, activated carbon chemical medium, designed to be used in air
filter service for the removal of acid gases and
vapors such as hydrogen sulfide, mercaptans, sulfur dioxide and other malodorous and corrosive
contaminants such as HCI and CIO2.

Techsorb chemical media is a very active material
that readily reacts with many airborne constituents.
Therefore, only the containers actually required for
the application should be opened. As shipped in
sealed containers, Techsorb has a shelf life of 1824 months.

Considering the wide range of applications and that
contaminants are rarely singular in nature, Flanders
will provide application assistance that may be
required. When dealing with gaseous contamination control, particulate control or contaminant capture effectiveness, Flanders has a proven track
record to support your requirements.

Techsorb TS-201 has been used extensively in
applications ranging from Indoor Air Quality to
Industrial Odor Control. The primary application is
for the control of volatile organic gases found in
indoor environments associated with renovation
activities, new materials of construction and particleboard furnishings. This material is also ideal for
controlling odors associated with cleaning solvents,
hobby materials and automobile exhaust fumes.
Electronic office equipment odors such as ozone
and VOC’s are readily removed using TS-201
chemical media.

Techsorb chemical media is specifically formulated
to control application specific nuisance and harmful
vapors. It is supplied in bulk form and may be
incorporated into Flanders gas phase media trays.

trolled include organo-sulfides such as dimethyl
sulfide and methyl mercaptan in pulp and paper mill
communities.

General Applications

Techsorb TS-202 has been used extensively in
applications ranging from Corrosion Control to
Industrial Odor Control. The primary application is
for the control of corrosive gases within heavy
industries such as Pulp and Paper, Sewage
Treatment, Primary Metals, Chemical manufacturing as well as oil and gas processing. Additionally,
it is used in Sewage Treatment and rendering
Facilities for the control of malodorous exhaust
emissions, either alone or as a polishing filter system to wet scrubbers.

Techsorb TS-204 is a dry, granular, activated carbon chemical medium, designed to be used in air
filter service for the removal of alkaline gases and
vapors such as ammonia and light organic amines.
Applications include odor control associated with
animal storage areas and process protection within
the semiconductor industry.
(Continued on following page.)

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

117

TECHSORB TS-205 has been used extensively in
Odor Control applications. The primary applications
are for odor and contamination control associated
with aldehydes and acrolein. Formaldehyde is a

Contaminant Removal
Capacity (Note 1)

TS-101
TS-201
TS-202
TS-204
TS-205
TS-209

10%
60-70%
18-23%
10%
5-10%
12-18%

or
e

Contaminant

Bulk Density
(lbs/ft3)

H2S
toluene
H2S
ammonia
formaldehyde
H2S

50
30
35
34
36
34

Notes

TECHSORB TS-209 has been used extensively in
applications associated with mixed contaminants,
such as those found in the semiconductor industry.
It has been found effective for the control of condensable organics, chlorine, hydrogen sulfide,
hydrogen cyanide, sulfur dioxide and ammonia.

Media
Designator

bon chemical medium, designed to be used in air
filter service for the removal of gaseous vapors.

bon chemical medium, designed to be used in air
filter service for the removal of gaseous vapors
such as formaldehyde, acrolein, acetaldehyde and
glutaraldehyde.

Techsorb TS-209 is a dry, granular, activated car-

Techsorb TS-205 is a dry, granular, activated car-

suspected human carcinogen. It is often found as a
by-product of formaldehyde resins in particleboard
furniture, a decomposition product of poorly mixed
urea formaldehyde foam insulation and as a volatile
ingredient in permanent press clothing, drapery and
carpeting. Acrolein is a by-product of combustion
processes such a cooking. Acetaldehyde is a constituent of vehicle emissions. Glutaraldehyde is
used as a sterilizing agent for medical instruments
that are not readily autoclaved.

TECHSORB TS-204 has been used extensively in
applications ranging from Odor Control to Process
Protection. The primary applications are for odor
control associated with ammonia and low molecular
weight amines typical of animal confined space
areas, decaying fish, sugar beet processing,
ammonia cleaning solutions and blue printing.
Process protection applications within the semiconductor industry include removal of fugitive amines
that are known to alter the photolithography
process.

fil

1. Contaminant removal capacity is determined by passing a moist (85% r.h.) stream of air containing 1%
by volume challenge gas through a one-inch diameter tube with a 9-inch deep bed of closely packed pellets at a rate of 1450 cc/minute and monitoring a 50 ppm breakthrough. The results are reported as
grams of challenge gas adsorbed per gram of media.
2. Particle Size is 4x8, U.S. Mesh, ASTM D-2862

118

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Type 9
Filter Holding Frames and Fasteners

or
e

Models 9HF-xxxxx

Fasteners

Flanders Type 9 Holding Frames are used to construct built-up filter banks for upstream or downstream access using ASHRAE rated filters. Type 9
frames will accommodate 1”, 2” or 4” panel filters
including metal washable filters. They are also suitable for bag filters, self-supporting rigid filters and
disposable type carbon elements. A filter-to-frame
seal is effected by a factory-installed gasket and
positive-sealing fasteners.

Flanders offers several types of fasteners for use
with Type 9 Frames. Refer to the Fastener
Selection Chart on the reverse side of this sheet to
select the appropriate fastener.

The standard frame is nominal 3” deep and constructed of 16 ga. galvanized steel.
Type 304
stainless steel is an available option. Frames are
also available in nominal 2”, 4”, and 6” depth.
Actual depth is 1/8” under nominal size.

Type 9 Frames can be assembled with pop rivets or
nuts and bolts. Prior to assembly, all sides should
be caulked with a non-hardening compound to prevent air bypass. Filter banks three frames high or
higher should be strengthened with 3” wide 16 ga.
stiffeners between each vertical row.

9HF-16203R

Standard 3 inch Holding Frames
Model
Dimensions, Inches
Number
H
W
16

2-7/8

9HF-16253R

2-7/8

9HF-20203R

2-7/8

9HF-20243R

2-7/8

9HF-20253R

2-7/8

9HF-24243R

2-7/8

ac
1.1 Frames shall be manufactured of 16 ga. galvanized steel and furnished with factory-installed
gasketing.
1.2 In-line depth shall be 3” in order to effect a rigid
and secure filter bank assembly. Filter fasteners
shall be selected to meet the requirements of the
specified filters. Fasteners shall not require the
use of tools to secure the filter.

2-7/8

1. Tolerances are +0 inch and -1/16 inch
2. Special sizes are available upon request

Note:

1.0 Filter holding frames shall be Type 9 as manufactured by Flanders.

fil

9HF-12243R

Guide Specifications

Installation Consideration

Options

General

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
119

Fastener Selection Chart
Number Per Frame
Length
(inch)

Filter Usage

Upstream
Service

Downstream
Service
4
4

1
2

1” panel filter, Precision Pak, PrecisionCell, or Rigid-Air
2” panel filter

2
2

P-3
P-4

3
4

2” panel prefilter with Precision Pak, PrecisionCell, or Rigid-Air
4” panel filter, PrecisionCell II

2
2

P-5
P-6

5
6

4” panel prefilter with Precision Pak bag,PrecisionCell, or Rigid-Air
6” PrecisionCell or Rigid-Air

2
2

P-12
C-2

12
2

12” PrecisionCell, or Rigid-Air
2” panel prefilter with PrecisionCell or Rigid-Air

C-4
C-12

4
12

4” panel prefilter with PrecisionCell or Rigid-Air
12” PrecisionCell or Rigid-Air

Not Recommended
4

2
4

4
Not Used

4
2

Not Used

Model P Fastener

Not Recommended
4

P-1
P-2

or
e

Model
Number

Model C-2 and C-4 Fastener

fil

Model C-12 Spring Loaded Fastener

120

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Uni-Frame
Media Holding Frame

or
e

Models 80955.xxxxxx

Installation

Uni-Frames are designed for retaining air filter
media pads in applications that require additional
media support.

Typical applications include roof top units, spray
booths, residential units, unit ventilators and other
applications not suited for ordinary fiberglass
throwaway filters because of airflow velocity or
environmental considerations

Standard Sizes

Guide Specifications
1.0 General

1.1 Permanent pad holding frames shall be
Uni-Frame as manufactured by Flanders.

The frame is fabricated of 26 gauge corrosionresistant steel channel with each corner of the
frame mitered for squareness. Filter pads are supported on the downstream side with a corrosionresistant steel expanded metal lathe grid. The
expanded metal lathe backing is spot welded to the
air exit side to prevent vibration. Retainer bars for
the upstream side are available as an option.

General

2.0

Nominal Size
(inches)
Actual Size
23-1/2 x 23-1/2 x 7/8

20 x 25 x 1

19-1/2 x 24-1/2 x 7/8

20 x 20 x 1

19-1/2 x 19-1/2 x 7/8

16 x 25 x 1

15-1/2 x 24-1/2 x 7/8

16 x 20 x 1

15-1/2 x 19-1/2 x 7/8

24 x 24 x 2

23-1/2 x 23-1/2 x 1-7/8

20 x 25 x 2

19-1/2 x 24-1/2 x 1-7/8

24 x 24 x 1

20 x 20 x 2

19-1/2 x 19-1/2 x 1-7/8

16 x 25 x 2

Construction

2.1 Frames shall be constructed of 26 ga. corrosion-resistant steel.
2.2 Corners shall be mitered in order to eliminate snagging of the media pad.
2.3 The media shall be supported on the downstream side by an expanded metal lathe backing which is welded in place.
3.0 Installation
3.1 Install frames in accordance with the manufacturers specified recommendation.

15-1/2 x 24-1/2 x 1-7/8

16 x 20 x 2

15-1/2 x 19-1/2 x 1-7/8

fil

Important Features

• 26 ga. corrosion-resistant steel construction
• Metal lathe support backing

• Mitered corners to ensure squareness and
eliminate snagging of media

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

121

K-Trac
Modular Filter Framing System

or
e

See model number development method on next page.

Construction

K-Trac Filter Framing Modules are used for
ASHRAE rated filters 2” to 36” in depth. K-Trac
Modules are complete factory-designed units which
replace multiple field-erected holding frames. They
also provide inherent structural strength and leakproof assembly that is sometimes lacking in frametype installations.

K-Trac framing members are constructed of Type
6063-T5 mill-finish extruded aluminum. Clear
anodizing is available as an option. Prefilter and
primary filter tracks are factory-gasketed at the top
and bottom with polypropylene pile air seals.

Versatility

Modules 8 ft. wide include one vertical support for
the upstream side. Wider modules are furnished
with vertical supports on the upstream and downstream sides. Sealing levers are located on the left
side of each horizontal row when facing in the
direction of air flow unless specified otherwise.

K-Trac Filter Framing Modules are available in
sizes up to a nominal 12 ft. high and 14 ft. wide for
upstream or downstream service. Modules may be
joined for larger banks. The 2” prefilter track
accepts disposable or pleated prefilters for singlestage applications.

Side-to-side gasketing is furnished on the filter
headers with every change. Side gaskets are compressed by a positive-sealing spring-loaded compression bar actuated by a sealing lever. The compression bar is retracted when loading or unloading
filter elements.

K-Trac framing members are factory-cut to length,
pre-drilled and gasketed for easy and quick assembly. Simple tools and light labor are all that are
required. Filters are easily inserted or removed and
require no clips or fasteners. Filters are angled into
the upper track, then set into the lower track.

General

The primary filter track accommodates Precision
Pak bag filters, Superflow V, or Rigid-Air filters, or
other filters having nominal 1” thick headers.

Important Features

fil

• Provides substantial savings in field assembly
• Filters are tightly sealed to eliminate air bypass
• Filters can be replaced quickly and easily

• Modules are factory-engineered with built-in stiffening

• Construction is corrosion-resistant aluminum

122

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Height CodeOverall Height (inch)Width Code

36-15/16

20H

48-13/16

25H

61-1/4

30H

73-1/8

35H

85-9/16

40H

97-7/16

45H

109-7/8

50H

121-3/4

55H

134-3/16

60H

146-1/16

35W
40W
45W
Overall Width (inch)

(fpm)

36-1/26

48-1/16

59-7/16

71-7/16

82-13/16

375
500
625
375
500
625
375
500
625
375
500
625
375
500
625
375
500
625
375
500
625
375
500
625
375
500
625
375
500
625
375
500
625

2250
3000
3750
3000
4000
5000
4500
6000
7500
5250
7000
8750
6750
9000
11250
7500
10000
12500
9000
12000
15000
9750
13000
16250
11250
15000
18750
12000
16000
20000
13500
18000
22500

3000
4000
5000
4500
6000
7500
6000
8000
10000
7500
10000
12500
9000
12000
15000
10500
14000
17500
12000
16000
20000
13500
18000
22500
15000
20000
25000
16500
22000
27500
18000
24000
30000

3750
5000
6250
5250
7000
8750
7500
10000
12500
9000
12000
15000
11250
15000
18750
12750
17000
21250
15000
20000
25000
16500
22000
27500
18750
25000
31250
20250
27000
33750
22500
30000
37500

4500
6000
7500
6750
9000
11250
9000
12000
15000
11250
15000
18750
13500
18000
22500
15750
21000
26250
18000
24000
30000
20250
27000
33750
22500
30000
37500
24750
33000
41250
27000
36000
45000

5250
7000
8750
7500
10000
12500
10500
14000
17500
12750
17000
21250
15750
21000
27250
18000
24000
30000
21000
28000
35000
23250
31000
38750
27250
35000
43750
28500
38000
47500
31500
42000
52500

50W

55W

94-13/16 106-13/16 118-13/16

129-9/16

6000
8000
10000
9000
12000
15000
12000
16000
20000
15000
20000
25000
18000
24000
30000
21000
28000
35000
24000
32000
40000
27000
36000
45000
30000
40000
50000
33000
44000
55000
36000
48000
60000

6750
9000
11250
9750
13000
16250
13500
18000
22500
16500
22000
27500
20250
27000
33750
23250
31000
38750
27000
36000
45000
30000
40000
50000
33750
45000
56250
36750
49000
61250
40500
54000
67500

75
10000
12500
11250
15000
18750
15000
20000
25000
18750
25000
31250
22500
30000
37500
26250
35000
43750
30000
40000
50000
33750
45000
56250
37500
50000
62500
41250
55000
68750
45000
60000
75000

60W

65W

70W

141-9/16 152-15/16 164-15/16

82.5
11000
13750
12000
16000
20000
16500
22000
27500
20250
27000
33750
24750
33000
41250
28500
38000
47500
33000
44000
55000
36750
49000
61250
41250
55000
68750
45000
60000
75000
49500
66000
82500

or
e

15H

30W

90
12000
15000
13500
18000
22500
18000
24000
30000
22500
30000
37500
27000
36000
45000
31500
42000
52500
36000
48000
60000
40500
54000
67500
45000
60000
75000
49500
66000
82500
54000
72000
90000

9750 10500
13000 14000
16250 17500
14250 15750
19000 21000
23750 28250
19500 21000
26000 28000
32500 35000
24000 26250
32000 35000
40000 43750
29250 31500
39000 42000
48750 52500
33750 36750
45000 48500
56250 61250
39000 42000
52000 56000
65000 70000
43500 47250
58000 63000
72500 78750
48750 52500
65000 70000
81250 87500
53250 57750
71000 77000
88750 96250
58500 63000
78000 84000
97500 105000

24-1/2

25W

10H

20W

(in)

15W

Overall
Face
Height Velocity

Height
Code

1. Height and Width Code: The first numeral represents the number of 24” x 24” filters high or wide. If 24” x 12” filters are also used in the
height or width, the second numeral is “5”.
2. Dimensions are based on using nominal size 24” x 24” and 24” x 12” filters. Select filters from capacity charts for Precision Pak bag filters
or single-headered PrecisionCell or Rigid-Air filters.
3. Sizes using 24” x 12” filters in both height and width require a 12” x 12” blankoff; for example, a KT- 15H35W has a 20 sq. ft. available,
not 21 sq. ft.
4. For capacities other than those shown, ratio the face velocities.

Model Number Development:
--

fil

K-Trac

20H

35W

Height
Code

Width
Code

Service
Location

Lever
Location

Special

• Height and Width Code: The first numeral represents the number of 24” x 24” filters high or wide. If 24” x
12” filters are also used in the height or width, the second numeral is “5”.

• Service Location: U (upstream) or D (downstream).
• Lever Location: L (left side) or R (right side) when facing in the direction of airflow (air directed at your
back).•
For special features or sizes: Use Suffix “X” and describe them.

KT-20H35W-ULX

This example represents a K-Trac module, 2 filters high and 3-1/2 filters wide, upstream service and left side
levers. The letter X indicates that special features are required.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

123

Installing filters and
prefilters

Filters with polyfoam side gasket

Spring-loaded sealing
levers actuate pressure
bars on both the prefilter
and primary filter.

Assembled module

Quick and easy assembly with a ratchet
wrench

or
e

How the K-Trac Works

Filter Usage and Module Weight

20H
25H
30H
35H
40H
45H

50H

55H
60H

20W

25W

30W

35W

40W

45W

50W

55W

60W

65W

70W

3A
17
3A-3C
30
6A
31
6A-3C
44
9A
45
9A-3C
58
12A
59
12A-3C
72
15A
73
15A-3C
86
18A
87

3A-1C
19
3A-4C
34
6A-2C
35
6A-5C
49
9A-3C
51
9A-6C
65
12A-4C
66
12A-7C
81
15A-5C
82
15A-8C
97
18A-6C
98

4A
22
4A-4C
38
8A
39
8A-4C
55
12A
57
12A-4C
73
16A
74
16A-4C
90
20A
91
20A-4C
107
24A
109

4A-1C
24
4A-5C
42
8A-2C
43
8A-6C
61
12A-3C
62
12A-7C
80
16A-4C
81
16A-8C
99
20A-5C
101
20A-9C
118
24A-6C
120

5A
26
5A-5C
46
10A
47
10A-5C
67
15A
68
15A-5C
88
20A
89
20A-5C
108
25A
110
25A-5C
129
30A
131

5A-1C
28
5A-6C
50
10A-2C
51
10A-7C
72
15A-3C
74
15A-8C
95
20A-4C
96
20A-9C
118
25A-5C
119
25A-10C
140
30A-6C
142

6A
31
6A-6C
54
12A
55
12A-6C
78
18A
79
18A-6C
102
24A
104
24A-6C
127
30A
128
30A-6C
151
36A
153

6A-1C
33
6A-7C
58
12A-2C
59
12A-8C
84
18A-3C
85
18A-9C
110
24A-4C
111
24A-10C
136
30A-5C
137
30A-11C
162
36A-6C
164

7A
35
7A-7C
62
14A
63
14A-7C
90
21A
91
21A-7C
117
28A
119
28A-7C
145
35A
147
35A-7C
173
42A
175

15H

Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight
Filters
Weight

15W

2A-1C
2A
1A-1C
15
13
10
1A-2C 2A-2C 2A-3C
26
22
18
4A-2C
4A
2A-2C
27
23
19
2A-3C 4A-2C 4A-4C
38
32
26
6A-3C
6A
3A-3C
39
34
28
3A-4C 6A-2C 6A-5C
50
43
35
8A-4C
8A
4A-4C
52
44
37
4A-5C 8A-2C 8A-6C
62
53
44
10A 10A-5C
5A-5C
64
55
45
5A-6C 10A-2C 10A-7C
75
64
53
12A 12A-6C
6A-6C
76
65
54

fil

10H

Width Code

Filters
Height
Weight
Code
(lbs.)

• A= 24” x 24” face size filter. C = 24” x 12” face size filter.
• Weight does not include filters. Add approximately 6 lbs. per Precision Pak bag filter, 20 lbs. per PrecisionCell filter, 17 lbs. per
Superflow V filter, and 17 lbs. per Rigid-Air filter.

124

or
e
st

Precision Pak bag
filter

PrecisionCell,
Superflow V, or
Rigid-Air filter with
a
Single Header

Drawing Notes

1. Framing members of extruded aluminum are factory-cut to exact length, pre-drilled and gasketed.
2. One vertical support for the center of the upstream side will be furnished on modules nominal 8 ft. wide. Wider modules will be furnished with vertical supports on both the upstream and downstream sides.
3. Sealing levers are located at the end of each horizontal row on the left when facing the module on
the upstream side unless specified on the right or on the downstream side.
4. The largest single module is 12 ft. high by 14 ft. wide. Modules may be combined to form larger banks.

Installation of Final Filters:

Install gasketed filters with pleats vertical wherever possible.
Place sealing lever in locked position and hold filter on the downstream side of the module.
Insert the top of the filter into the upper narrow track until it clears the lower flange.
Drop the filter into the bottom narrow track. Fill the row with filters, moving them to the side opposite the sealing
lever.
5. Unlock the lever to seal the row airtight.

1.
2.
3.
4.

1.0 Framing Modules

Guide Specifications

1.1 Filter framing modules shall be K-Trac as manufactured by Flanders.

fil

2.0 Construction

2.1 Extruded aluminum framing members shall be
Type 6063-T5, with an average thickness of .095”
They shall be cut to size and drilled for simple
speed screw assembly into modules of the sizes
noted in the schedules and plans.
2.2 Both prefilter and final filter tracks shall be permanently gasketed to eliminate air bypass.

2.3 Where required, vertical support members shall be
furnished to support horizontal members.

2.4 The prefilter track shall be separate to allow
removal and insertion of prefilters without disturbing the final filters.
2.5 Each horizontal row of prefilters and final filters
shall include factory-installed positive-sealing
bars to permit easy changeout of filters. Gasket
on filters must be compressed during operation.
2.6 Modules shall be complete with speed-screws
necessary for field assembly.
3.0 Features
3.1 Model number and capacities shall be as specified
and/or shown on the drawings.
3.2 Provide options as specified.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

125

Perma Frame

or
e

Hard Ceiling Adaptor Frames
for Terminal Modules

Models HCFA-xxxx

Model Number Development
General
HCFA

The Perma Frame is ideal for biotech facilities that
require frequent wash-down of the cleanroom as
well as isolation hospital rooms where HEPA type
filtration is frequently required.

Model
Number

ra
te

Important Features

fil

• Heavy duty construction

• Powder coated washable surface
• Welded corners

• Requires no gasketing

126

2448
Size

SS
Special
Features

• Special Features: Use “SS” as a suffix for
stainless steel construction. Frames are furnished
with a white powdercoat as a
standard.

Perma Frames are manufactured of 18 gage steel
and are welded on all exposed corners to guarantee a smooth cleanable surface. They are finished
with a white powdercoat paint as standard. Predrilled mounting holes are furnished on the vertical
flanges to facilitate an easy and level installation.

Construction

Flanders Perma Frame is used to mount ducted or
fan-powered terminal modules in a hard ceiling
application such as sheet rock or plasterboard.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Construction Details
Dimensional Data
Actual Dimensions
(inches)
W

HCFA 2424

HCFA 2448

Drawing Notes:

Weight
(lbs)

or
e

Model
Number

Construction-18 ga. cold rolled steel or 304 stainless
steel.

IL- inside length

Guide Specifications

fil

IW- inside width

1.0 General

1.1 Sheet rock adaptor frame for ceiling mounted terminal modules shall be Perma Frame as manufactured by Flanders.
2.0 Frame Construction

2.1 Frames shall be constructed of 18 gauge steel
and welded flush on all exposed corners.

2.2 They shall be painted with a white powder coat
paint.
2.3 The mounting flanges and alignment holes shall
be be predrilled for precise installation.
2.4 The resting flange shall accomodate standard
size terminal modules.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

127

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e

Residential Air Cleaner
Refills
For Space Gard® , Air Bear®, Honeywell® Air Cleaners*

See model numbers in chart on next page.

Installation

For over 50 years, Flanders air filters have been
protecting cleanrooms, hospital operating rooms
and other critical environments. Now, homes and
businesses can benefit from their superior craftsmanship in a new line of Flanders filters.

Air Bear® replacements

Models 500AB and 550AB cartridges are designed
for use with the Trion Air Bear® air cleaner housings. Simply install in place of the Trion cartridge.
No alterations or equipment are required.

Construction

Space Gard® replacements

Models 500AB, 600SG and replacement cartridges
for selected Honeywell® air cleaners are made with
a blend of polypropylene and polyethylene electrostatic filtration media which is adhered to an
expanded metal backing. This combination is deep
pleated and encased in a moisture resistant kraft
board frame and offers a MERV 8 rating.

The Model 650 insert installs in Space Gard® models 2200 and 2250 air cleaner housings by using
the existing pleat separators and media holding
assembly. An easy-to-follow assembly guide is
printed on the package back.

Model 600SG and 650SG cartridges are also
designed for use in Space Gard® models 2200 and
2250 air cleaner housings. Designed to replace the
traditional collapsible media pack, Models 600SG
and 650SG provide all of the benefits of the original, but with considerably less effort to install.

Models 550AB and 650SG cartridges are similar to
our industrial grade PrecisionCell II air filter, with
perfectly spaced mini-pleats of wet laid glass
microfiber media and a moisture resistant kraft
board frame. This provides high efficiency filtration
and a longer filter life and a MERV 10 rating.

Media for high efficiency air cleaners

The Honeywell® replacement cartridges are
designed for use in Honeywell models 203719,
203720, 203721 and 203722. They offer the benefit of superior performance and easy installation.

Important Features

Model 650SG media inserts consist of the same
media as the 550AB and 650SG cartridges but are
provided in a convenient, easy to store package.
They are pleated to the proper depth with fastener
strips secured to each outside pleat.

Honeywell® replacements

• Equal or superior performance to original
replacements
• Replacements for several models

fil

• Electrostatic Poly blend models offer a MERV
8 rating

• Mini-pleat models and 650SG Inserts offer a
MERV 10 rating
*Air Bear® is a registered trademark of Trion, Incorporated. Reference to their mark
is for system identification only.

*Space Gard® is a registered trademark of Research Products Corporation.
Reference to their mark is for system identification only.
*Honeywell® is a registered trademark of Honeywell Inc. Reference to their mark is
for system identification only.

128

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

MERV

Media

Electrostatic Poly
Blend

550AB Cartridge

Wet laid glass
microfiber-mini
pleat

Water resistant
kraft board

82955.052025

600SG Cartridge

Electrostatic Poly
Blend

Water resistant
kraft board

82655.062025

650SG Cartridge

Wet laid glass
microfiber-mini
pleat

Water resistant
kraft board

650SG Inserts

Wet laid glass
microfiber

500AB Cartridge

Electrostatic Poly
Blend

550AB Cartridge

Wet laid glass
microfiber-mini
pleat

Air Bear®

Trion, Inc.

203720
See FP Model
203721

Performance Data - Wet Laid Glass Media

@ 300 fpm
Cartridge .18
inch w.g.
Insert

.5
.7
1

30%

82655.052025

Water resistant
kraft board

82955.052025

Water resistant
kraft board

82655.051625
82655.0452025
82655.0452020
82655.04512520

Performance Data - Poly Blend Media
Initial

Resistance

Efficiency by Particle Size
Microns
Efficiency

@ 300 fpm

62%
72%

Water resistant
kraft board

.12 inch w.g.

78%

0.35

16%

0.62

28%

0.84

38%

1.14

47%

1.88

68%

90%

3.46

75%

94%

4.69

71%

98%

6.20

69%

100%

8.37

66%

fil

.12 inch w.g.

Resistance

Efficiency by Particle Size
Microns
Efficiency

Initial

82955.062025

82455.062025

Electrostatic Poly
Blend

203722

82655.052025

Insert Only

203719

Honeywell®

Water resistant
kraft board

Space Gard®
2200 and 2500

FP Model

500AB Cartridge
500

Research
Products
Corporation

Frame

or
e

Flanders

FP Refill(s)

Replacement for:

*Air Bear® is a registered trademark of Trion, Incorporated. Reference to their mark is for system identification only.
*Space Gard® is a registered trademark of Research Products Corporation. Reference to their mark is for system
identification only.
*Honeywell® is a registered trademark of Honeywell Inc. Reference to their mark is for system identification only.
Performance values stated may be averages typical of the products listed. Contact factory for actual performance
test reports on specific products.
Products described here are competing products from Flanders®. Reference to competing brands are for system identification only.

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

129

Model 500AB

or
e

Air Cleaner Housing
Model 82855.052025

Construction

The Model 500AB air cleaner housing is designed
for use with the Model 500AB or 550AB cartridge in
an HVAC system. Both of these cartridges feature
deep pleated media whose area is several times
the face area of the housing.

The Model 500AB air cleaner housing has a built-in
prefilter track. Using a prefilter can greatly increase
the useful life of a high efficiency filter such as the
500AB or 550AB cartridges. The Model 500AB air
cleaner housing takes a standard 20 x 25 x 1 disposable panel filter as a prefilter.

The non-woven media inserts capture a wide range
of airborne particles as small as 1 micron (1/25,000
of an inch in diameter). These airborne particles
include grease and soot (5 microns), dust (10
microns), pollen and mold (100 microns) which are
commonly found in homes. This type of filtration
not only provides cleaner air but keeps these particles from building up on cooling and heating equipment.

Dimensions

With the advent of modern air tight buildings, many
of us spend our indoor hours in air that can literally
make us feel sick with the recirculation of dirt, dust
pollen, animal dander, and other particulates. It is
for this reason that state-of-the-art air filtration is
essential. Flanders Model 500AB air cleaners offer
a solution you can trust, backed by nearly 50 years
of filtration manufacturing experience.

General

Important Features

fil

• Allows better filtration and less
maintenance
• Rugged metal construction

• Prefilter track for particulate or gas/vapor
control

• Easy and affordable way to upgrade
residential filtration

130

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

7-1/8”

25-1/16”

22-5/16”

Versatile Installation

or
e

The Model 500AB air cleaner housing can be installed in a variety of configurations; Highboy, Lowboy,
Horizontal, Upflow or Vertical Downflow.

LOWBOY

TYPICAL
TRANSITION
(VERTICAL
DOWNFLOW)

fil

HIGHBOY

UPFLOW

HORIZONTAL

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

131

Airia 350

or
e

Electronic Room Air Cleaner

Physical Data

Airia 350 delivers high quality air filtration right into
the living space. This compact unit is filled with the
latest developments in air filtration, from high efficiency HEPA technology to state-of-the art odor
control. It will purify the air in a 25’x25’ room 4
times an hour - quietly and efficiently. All of this in
a footprint of under 2 square feet.

Rated capacity 350 CFM

Spun glass panel

2nd stage:

Arm and Hammer Odor Control

3rd stage:

TechSorbTM Activated Carbon

On-off-variable speed, solid
state

Wood, vinyl laminated

1st stage:

HEPA type

Important Features

• Super quiet operation

• Operates for pennies a day.

fil

• 4 stage filtration removes particles, odors.
• Moves 350 cubic feet of air every minute.
• Built-in casters for easy moving.

• Easy to service

132

100 watts
55 lbs.

Weight

Cabinet

The Airia 350 features four stages of filtration, contained in a tastefully designed cabinet that has a
rich, wood grain finish.

4th stage:

Power Consumption

Construction

120 VAC, 1Ph, 60 Hz

Electrical input

Controls

General

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

Airia 1000 and 2000

or
e

Whole House Electronic Air Cleaners

General

Airia whole house air cleaners feature a reliable,
built-in airflow sensor to cycle on and off with the
central system fan.

The Airia line of electronic air cleaners delivers
high, instantaneous filtering efficiency in a reliable,
permanent package that is built to last the life of an
air handling system. Airflow resistance is low and
constant. Operation costs only pennies per day.

Cabinet is one-piece epoxy coated steel
Cells are aluminum and can be removed for washing
Post filter shipped with unit is patented Arm and
Hammer odor control filter
Electronics are dependable high-frequency.
Air flow sensor cycles unit on and off with the system
fan.
LED operation indicators
On-off switch for convenient servicing.

Important features:

• 1st stage pleated prefilter preconditions the air
• 2nd stage electronic cell collects airborne particles
• 3rd stage Arm and Hammer® post filter removes
odors.

Physical Data

Airia 1000 and 2000 are designed for easy ductmounted installation with today’s higher efficiency
central forced air systems. They feature a powder
coated galvanized steel cabinet, permanent all aluminum collector cell, odor control filter and state of
the art PWM power supply. These simple, rugged
and reliable air cleaners deliver 3 comprehensive
stages of air cleaning:

The unit is very easy to clean. Just lift off the
access door, remove collector cells to tub or sink
wash. Let dry and re-install.

• High efficiency electronic air cleaning

• Durable one-piece steel cabinet, epoxy coated

• Permanent washable aluminum collector cells
• Dependable high frequency electronics,LED indicators,
convenient on-off switch for servicing

fil

• High, instantaneous collection efficiency
• Low and constant resistance to airflow
• Operates for pennies per day

• Patented Arm and Hammer odor control filter
• Electronic sensor cycles unit on/off with system fan

• Easy to install
• Easy to clean

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

133

Model

DIM “A”
(inches)

DIM “B”
(inches)

DIM “C”
(inches)

DIM”D”
(inches)

AIRIA 1400

19.960

16.335

15.762

AIRIA 2000

23.960

20.335

19.762

or
e
13.762

17.762

Primary LED
Indicator

Secondary LED
Indicator

22.489”

Power Pack

On/Off
Switch

Cabinet

3.625”

Access Door

DIM “C”

DIM “A”

Air

DIM “D”

DIM “B”

1”
23.812”
26.312”

Flow

.625”

Specifications

fil

Rated Capacity
Electrical Input
Power Consumption
Resistance to Airflow
Unit Weight
Prefilter
Main Collector
Odor Control
Finish
Mounting Options
On/Off Operation

SIDE VIEW

134

8.125”
END
VIEW

Airia 1400 (16x25)

Airia 2000 (20x25

1400 CFM
120 Vac, 1 Ph, 60 Hz
40 watts
0.2” w.g. @ 1400 CFM
40 lbs.
Disposable pleat
2-stage electronic
Arm and Hammer® Pleat
Epoxy Powder Coated
Vertical or Horizontal
Electronic Thermister

2000 CFM
120 Vac, 1 Ph, 60 Hz
48 watts
0.2” w.g. @ 2000 CFM
45 lbs.
Disposable pleat
2-stage electronic
Arm and Hammer® Pleat
Epoxy Powder Coated
Vertical or Horizontal
Electronic Thermister

Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL

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Honeywell 11255 Users Manual AMKT0103Ka

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