INTEX Krystal Clear Sand Filter Pump SX1500 (1500 GPH) 220Plunger valves and 38mm outlet fittings (Not included) Sand is NOT included. This device is suitable for above ground pools that have a maximum capacity from 19. 150 litres with a diameter of 488 cm and above. It has a flow capacity of 4500 litres per hour. Technical Characteristics: Flow capacity: 4500 l h The filter is provided with a 6 function valve: filtering backwashing rinsing recirculating emptying stopping Our Intex sand filter pump requires