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Pentair 180008 FNS Plus 48 Sq Ft D.E. Pool Filter

Availability: In Stock

Regular Price: $879.99

Sale Price $739.99

You Save: $140.00  (15%)

Quick Overview

The Pentair 180008 FNS Plus DE Swimming Pool Filters give pool owners an easy way to switch to the incredibly superior filtering abilities of diatomaceous earth. Filters using diatomaceous earth result in water that is cleaner and more clear than traditional sand and cartridge filters.

Pentair FNS Plus Brochure
Pentair FNS Plus Filter Parts


The FNS Plus has a corrosion resistant reinforced plastic casing allowing it to stand up to the harshest weather environments. The eight DE grids inside are curved to allow greater surface area for more effective filtering and each grid has integrated handles for easy removal. The efficient design of the FNS Plus uses large external fittings and low-restriction internal plumbing to maximize the efficiency of your pool pump. The FNS Plus can filter particles as small as 1 micron including dust and pollen giving your pool water purity that cartridge filters simply cannot match.

  • Pentair part number 180008
  • Grids included
  • Chemical-resistant fiberglass-reinforced polypropylene tank
  • Attractive almond-colored tank blends into any environment
  • Easily removable filter grid pack is secured by a single nut 
  • Hi Flow manual air relief valve and continuous internal air relief
  • Conveniently located 1 1/2 ft drain for easy and efficient clean-out
  • Unique internal design ensures optimal filtration
  • Compatible with all sanitizing chemicals
  • Curved vertical grids provide maximum filter surface area cleaning
  • Tension Control clamp for secure tank closure
  • Leak proof plumbing connections
  • Valve not included
  • 1 year warranty


Valve Options (sold separately):

  • Pentair 261152 - 2" Multiport Valve
  • Pentair 263064 - 2" Slide Valve
  • Pentair 261177 - 1.5" Multiport Valve
  • Pentair 261142 - 2" Hi-Flow Multiport Valve
Additional Information
Delivery Time LTL Freight 2-7 Business Days
Manufacturer Pentair
Technical Specs

Owners Manual

  • Effective Filtration Area: 48 square feet
  • Flow Rate: 96 GPM (Gallons Per Minute)
  • Turnover: 8hrs= 46,080 Gallons, 10hrs= 57,600 Gallons
  • DE Required: 4.8 lbs

SKU PAC-05-185
Manufacturer Part # 180008
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