PENTAIR FNS PLUS Fiberglass D.E. Filter Instructions
- June 4, 2024
- Pentair
Table of Contents
TRADEGRADE
FNS PLUS FIBERGLASS D.E. FILTER
The filter 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 1,000 microns). Here’s why
D.E. 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 FIBERGLASS D.E. FILTER
The culmination of 40 years of pool filter experience.
FNS Plus filters have been designed with curved grids to maximize the
filtration area. Our internal design has been refined to minimize flow
restrictions and, therefore, requires minimal pumping power to achieve the
needed flow rate. That means lower utility costs. In addition to providing the
clearest water possible, FNS Plus filters were also designed for easy
maintenance and long-term reliability.
KEY FEATURES
Durability
Chemical-resistant, fiberglass-reinforced polypropylene tank for exceptional
strength and longer life.
Simplify maintenance
Easily removable filter grid pack to simplify maintenance and save you time.
Convenience
Conveniently located 1½” drain for easier and more efficient cleanout and 100%
draining.
Maintain efficiency
High Flow™ Manual Air Relief Valve and continuous internal air relief work
together to maintain efficient filtration and will help prevent
overpressurization.
How a D.E. Filter Works
When 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.
Versatile upgrade for fiber-optic lighting
2” plumbing connections for maximum flow.
Model Number| Filter Area Sq.
Ft.| Vertical Clearance.| Filter Diameter| Flow Rate
GPM
Comm.|
Turnover Capacity (Gallons)
---|---|---|---|---|---
8 hrs.| 10 hrs.| 12 hrs.
FNSP 24| 24| 48″| 21.5″| 48| 23,040| 28,800| 34,560
FNSP 36| 36| 62″| 21.5″| 72| 34,560| 43,200| 51,840
FNSP 48| 48| 74″| 21.5″| 96| 46,080| 57,600| 69,120
FNSP 60| 60| a 86″| 21.5″| a 120| 57,600| 72,000| 86,400
Required clearance to remove filter elements.
Flow rate is based on 2.0 GPM per square feet of filter area. Actual system
flow will depend on plumbing size and other system components.
Maximum flow rate.
The TradeGrade family of products is exclusively made for and sold by the
world’s most demanding pool professionals.
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