Intex Sand Filter Model SX925The Intex Krystal Clear Sand Filter Pump SX925 is ideal for round or rectangular above ground pools up to 16,805 litres. The pump has a flow rate of 925 gallons per hour, and will keep the pool's water circulating to help it retain its clarity and cleanliness. The Sand Filter has a four function 6 way control valve, so you can easily filter, backwash, recirculate, and drain. It also includes a handy 24 hour automatic timer to help ensure the pump