Details: This high-performance Pro-Series sand filter system includes the filter tank, 1 1/2 HP PowerFlo Matrix pump and base. The weather-proof tank is constructed of a tough color-fast polymeric material and topped with a patented easy to use multi-port valve. All Pro Series pool filters feature an integral top diffuser, self-cleaning underdrain and 360 degree slotted laterals to ensure even water distribution over every square inch of sand, thorough backwashing and totally balanced flow for crystal clear water. This advanced full flow technology reduces energy costs by obtaining maximum filtration, so you can run your filter less. Filter is complete with tank, 7-way multi-port valve, sight glass and pressure gauge. 7-way Valve Positions: Filter, Waste, Winter, Closed, Backwash, Recirculation, Rinse.