Pentair FNS Plus 48 SqFt DE Filter (No Valve)

The Pentair FNS Plus 48 (EC‑180008) is a high-performance vertical-grid diatomaceous earth (DE) filter designed for residential in-ground pools. It features a fiberglass-reinforced polypropylene tank that offers chemical resistance and durability. This model comes without a valve, giving you the flexibility to choose a compatible multiport or slide valve of your preference.

Key Features

• Service‑Ease™ curved vertical grids maximize effective filtration area.

• Integrated High Flow™ internal air relief plus a manual air-relief valve to maintain efficient filtering and prevent over-pressurization.

• 1½″ bottom clean‑out port (drain) for easy sand and water removal.

• Durable tank construction using fiberglass-reinforced polypropylene for strong, long-lasting performance.

• Tool-free clamp ring (tension control) for easy access to internal grids.

• 2″ plumbing connections (bulkheads) for high-flow systems.

• Certified to NSF/ANSI Standard 50 for safety and performance.

Benefits

• Higher dirt capacity: The 48 sq ft of grid area allows for more DE coverage, which means better filtration and longer time between cleanings.

• Customizable valve setup: Since the valve is not included, you can select a valve type (multiport or slide) that matches your system and plumbing.

• Strong and chemical-resistant: Built to last, with a tank that withstands harsh pool chemistry.

• Easy maintenance: The removable grid pack is convenient for cleaning or replacing.

• Better system efficiency: The air-relief design helps maintain optimum flow and filtration performance.