Fits Pentair FNS, FNS Plus, Nautilus Plus pool and spa D.E. filters. 2" Multi-Port Valve This side mounted, pre-plumbed Valve from Pentair is designed for maximum working pressures and performance. It Pentair PacFab FNS Plus D.E. Filter 24, 36, 48, 60SQ FT - Please Note: Not all items are listed due to being discontinued by the manufacturer. 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 fl ow restrictions, and therefore requires minimal pumping power to achieve a needed fl ow rate. Pentair FNS Plus DE Filters on sale, find the best price on Pentair (Purex-Triton) FNS Plus pool filters, in 4 sizes to fit most any inground pool. $5 Flat Rate Shipping on all orders! High Flow manual air relief valve ; Tension Control™ clamp ; Pentair FNS Plus Fiberglass D.E. Filters are fiberglass reinforced polypropylene of advanced chemical resistant materials for superior strength and reliability. The top manifold design features the Service-Ease grid pack for convenient one-at-a-time grid servicing. Find great deals on eBay for pentair fns filters. Shop with confidence. Skip to main content. Pentair FNS Plus 60SqFt D.E. Pool Filter Grid Assembly 59023300. Brand New. $184.91. Pentair FNS DE Filter 98209803 Manual Air Relief Valve Assembly. Brand New · Pentair · DE Filter. Find the right Pentair D.E. Filter for your in-ground, above ground, residential or commercial swimming pool at PoolSupplyWorld.com. Free shipping sitewide! Everyday Low Prices! Pentair 180007 FNS Plus Fiberglass FNSP36 D.E. Pool Filter The top manifold design features the Service-Ease grid pack for convenient one-at-a-time grid servicing. D.E. Pool Fliters remove the smallest particles, down to 5 microns, compared to other pool filter types. FNS Plus Filters are designed with curved filter grids to maximize the filtratio