Pentair FNS Plus FNS36 Pool Filter 180007

Pentair FNS36 Plus Fiberglass Pool Filters FNS PLUS 36 Model 180007 Backwash valve sold separate. Pentair Nautilus FNS Plus Polypropylene D.E. Pool Filter For Inground Swimming Pool Systems. Sturdy tank clamp made of premium stainless steel has a permanent spring mechanism to safely indicate proper tightness for securing tank halves. Water flows in bottom, up and around filter grid for even distribution of diatomaceous earth, eliminating bridging between elements and providing highly efficient filtration. Exclusive grid assembly with molded-in handles lifts out easily for inspection and periodic cleaning. Backwashes from top to bottom utilizing gravity for total cleaning of accumulated dirt and D.E. powder. 2" bottom drain assembly permits unrestricted flow when draining filter. 2" plumbing connections allow for maximum flow. Valves sold separate.