... energy-saving and friendly-environmental. Features:1) 300 gallons (1200 liters) per hour2) Perfect for 8', 10', 12' Inflatable Pools & 8', ... 10', 12' Steel Frame Pools1) 600 gallons ( 2000 liters) per hour2) Perfect for 8', 10', 12', 15' Inflatable Pools & 8 ... ', 10', 12', 15' Steel Frame Pools1) 1000 gallons (4000 liters) per hour2) Perfect for 12', 15', 18' Inflatable Pools & 12', 15 ...