Keep your pool water Krystal Clear and refreshing this summer with the Intex 330 GPH Filter Cartridge Pump! Boasting a pump flow rate of 330 gallons per hour and a system flow rate of 300 gallons per hour, this pump will circulate and filter the water in your above ground pool to keep everything clean, refreshing, and fun. In addition, the maintenance for this pump is a breeze: just the occasional cartridge rinse or swap to keep this pump running strong. This filter uses Type H filter cartridges (Item #29007E) which should be changed every couple of weeks. This pump is a must have for any above ground pool up to 10 feet in diameter, see for yourself!