Pool Sand Filter System, 18-Inch, 40 GPM, 7-Way Valve

Above ground pool sand filter system delivers clearer water fast with a high-flow 40 GPM circulation rate for quicker turnover and less downtime between swims. Built around an 18 in (457.2 mm) corrosion-resistant polymer tank, it’s designed for reliable outdoor use through sun, rain, and winter storage. The 7-way multi-port valve makes filtering, backwashing, and rinsing straightforward, helping reduce the time and hassle of routine pool maintenance.

• Delivers up to 40 GPM (151.4 LPM) flow for efficient circulation and faster water cleanup


• Switches between 7 modes: Filter, Backwash, Rinse, Recirculate, Waste, Winter, Closed


• Resists corrosion and impact with durable PE/polymer construction for all-weather use


• Connects easily with 1-1/2 in inlet/outlet fittings to fit many pool pump setups


• Simplifies upkeep with a drain plug to help with winterizing and controlled draining

Designed for flexible installation, this sand filtration system works with many above-ground and in-ground pool layouts, including backyard, indoor, gym, and hotel pools. Use #20 silica sand for effective particle capture and consistent filtration performance. When water starts to slow or pressure rises, rotate the valve to backwash and rinse to restore flow without complicated steps. If you want dependable circulation and easier maintenance all season, grab yours today and keep swim-ready water on hand.

• Tank diameter: 18 in / 457.2 mm


• Maximum flow: 40 GPM / 151.4 LPM


• Inlet/Outlet diameter: 1-1/2 in / 38.1 mm


• Material: PE (polymer)


• Valve: 7-way multi-port (Filter/Backwash/Rinse/Recirculate/Waste/Winter/Closed)