Pleatco Replacement Cartidge Hayward Swim Clear, Super Star Clear C 2000, C 2020, C 2025, Sta-Rite PRC 50 (MICROBAN), 1 Cartridge Replacement cartridge Hayward models swim clear, super star clear c 2000, c 2020, c 2025, sta-rite prc 50 50 Percent open ABS free flow cores maximize water flow through reemay filter media Antimicrobial end caps resist chlorine degradation and provide support to filter material for a longer life span Replaces unicel C-7447 and filbur FC-1235; made in usa; microban inhibits the growth of stain and odor causing microbes like bacteria and algea Measures 7-inches in diameter by 14-3/16-inches in length and 3-inches of top and bottom hole diameters