Keep your pool water Krystal Clear and refreshing this summer with the INTEX 1,500 GPH Filter Cartridge Pump. Boasting a pump flow rate of 1,500 gal. per hour and a system flow rate of 1,180 gal. 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. With the included filter cartridges, owning an above ground pool will provide more swim time and less maintenance. These must have Filter Cartridges A with the INTEX Krystal Clear Cartridge Filter Pump are made with easy-to-clean Dacron paper for the ultimate filtration. For best use and results, the filter cartridge A is compatible for filter pump models 28603EG, 28637EG and 28635EG. For maximum efficiency and results for your above ground pool, the recommendation is to replace cartridges every 2 weeks.