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Pentair Pool Filter Header

Pentair FNS Plus Diatomaceous Earth (D.E.) Swimming Pool Filters
Diatomaceous earth, or D.E. for short, is a natural substance that traps dirt and debris as small as five microns (1/10 the width of a human hair). That means body oils, suntan lotions, pollens, dust and even some bacteria are caught in a D.E. filter, leaving behind sparkling clear, healthier water. We've maximized the filtration area, which means longer periods between cleanings. And we've designed our D.E. filters to require the least amount of pumping power to achieve a needed flow rate, lowering your utility costs.
Pentair FNS Plus D.E. Filters
Pentair FNS Plus D.E. Filters

Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-24
FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass reinforced polypropylene body for advanced chemical resistance and superior strength.
  • Superior strength
  • Service-Ease grid pack
  • Continuous High Flow internal air relief
  • Top-to-bottom backwash
  Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-24
Pentair FNS Plus D.E. Filters

Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-36
FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass reinforced polypropylene body for advanced chemical resistance and superior strength.
  • Superior strength
  • Service-Ease grid pack
  • Continuous High Flow internal air relief
  • Top-to-bottom backwash
  Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-36
Pentair FNS Plus D.E. Filters

Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-48
FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass reinforced polypropylene body for advanced chemical resistance and superior strength.
  • Superior strength
  • Service-Ease grid pack
  • Continuous High Flow internal air relief
  • Top-to-bottom backwash
  Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-48
Pentair FNS Plus D.E. Filters

Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-60

FNS Plus Filters feature the same, superior curved grid design as the FNS, but with a fiberglass reinforced polypropylene body for advanced chemical resistance and superior strength.
  • Superior strength
  • Service-Ease grid pack
  • Continuous High Flow internal air relief
  • Top-to-bottom backwash
  Pentair FNS Plus Fiberglass D.E. Filter - FNS PLUS-60

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