HWD C-550 Easy Clear 1hp Above Ground Cartridge System Easy-Clear full-flo element filters are designed specifically for aboveground pools of all sizes. Manufactured from high-density ABS materials, Easy-Clear will provide years of trouble-free operation. Performance-matched with the Power-Flo™ LX pump series, they will turnover 24,000 gallons in an eight hour period, easily handling a 24' round above-ground pool. Easy-Clear filters are mounted on a rugged filter base and use a special reinforced polyester cartridge engineered to provide superior water clarity with minimal care. Features Easy-Lok™ lid access design provides simple entry to service the cartridge element Built-in check valve prevents accidental loss of pool water when cartridge is being removed for cleaning Unique safety-catch prevents over tightening of the cover and unwanted entry into the filter Cartridge element is uniquely designed of high quality reinforced polyester and a molded center core for easy cleaning, high flows and long life Union connection allows pump or filter to be removed quickly and easily for servicing systems