Pentair Fns Plus Users Manual PE34792_sppp

FNS Plus fns_plus_data_sheet

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FNS
Plus
Fiberglass D.E. Filter
®

By Pentair Pool Products®

The filter that delivers crystal clarity
Filtering with diatomaceous earth (D.E.) gives you water
that really sparkles. That’s because D.E. filters remove the
tiniest of contaminants…particles as small as 5 microns.
(An average grain of sand is 1000 microns!) Even though
these particles can’t be seen individually, collectively they
greatly affect water clarity.
Here’s why diatomaceous earth filters work so well. Water
passes through a series of D.E. coated grids. Under a
microscope, D.E. looks like a collection of tiny sponges. And
just like a sponge, water can pass through, but microscopic
impurities like dirt, algae, and some forms of bacteria can’t.
FNS® Plus D.E. Filters have been designed with curved grids
to maximize filtration area. More filter area means better
performance and longer periods between cleanings. Our
exclusive internal design has been refined to minimize flow
restrictions, and therefore requires minimal pumping power
to achieve a needed flow rate. That means lower utility costs.

In addition to providing the clearest possible water, FNS Plus
was also designed for easy maintenance and long-term
reliability. So you can count on it to keep your pool’s water
clean and crystal clear for years to come.
●

Curved vertical grids provide maximum filter surface area
for greater dirt-trapping capacity and longer periods
between cleanings.

●

Unique internal design ensures optimum filtration and
backwashing efficiency.

●

Chemical resistant, fiberglass reinforced polypropylene tank
for exceptional strength and long life.

●

Easily removable filter grid pack to simplify maintenance
and save you time.

FNS Plus Fiberglass D.E. Filter
®

Corrosion-resistant fiberglass tank
for long life
Tension ControlTM clamp for
secure closure
2" plumbing connections for
maximum flow
Conveniently located 1½" drain
for easy and efficient cleanout and
100% draining

Model
Number
FNSP 24
FNSP 36†
FNSP 48†
FNSP 60†

Filter
Area Sq. Ft.

Vertical
Clearance*

Filter
Diameter

24
36
48
60

48"
62"
74"
86"

21.5"
21.5"
21.5"
21.5"

Flow Rate GPM
Res.**
Com.***
60
90
120
150

The culmination of 40 years of
pool filter experience

48
72
96
120

Turnover Capacity (Gallons)
8 hours 10 hours 12 hours
23,040
34,560
46,080
57,600

28,800
43,200
57,600
72,000

34,560
51,840
69,120
86,400

†
NSF Listed.
* Required clearance to remove filter elements.
** Maximum flow rate.
*** Flow rate is based on 2.0 GPM per sq. ft. of
filter area. Actual system flow will depend on plumbing size and
other system components.

The FNS® Plus filter’s time-tested design offers you maximum
performance, convenience, and reliability for year after year of
sparkling clear pool enjoyment. No wonder more than 2 million
Pentair filters have been installed by pool professionals.
●

Attractive almond-colored tank blends into any
backyard environment.

●

High FlowTM manual air relief valve and continuous internal air
relief work together to maintain efficient filtration and prevent
over-pressurization.

●

Easily accessible 2" drain for efficient cleanout.

●

One-year limited warranty. See warranty for details.

How a D.E. Filter Works
When diatomaceous earth (D.E.) is introduced into the filter system, it coats
the filter cloth. As water passes over the filter grids, the D.E. particles capture
even the smallest suspended dirt particles. When cleaning is needed, the
water flow is simply reversed.

Available from:

www.pentairpool.com
Phone: 800-831-7133 Fax: 800-284-4151

pumps / filters / heaters / heat pumps / automation / lighting / cleaners / sanitizers / maintenance products
9/05 Part # P1-091

©2005 Pentair Water Pool and Spa, Inc. All rights reserved.



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