Pleatco PA125-M Replacement Cartrdige for Hayward ASL Full-Flo C1250, C1500 (MICROBAN), 1 Cartridge Replacement cartridge for Hayward asl full-flo c1250, c1500 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-9499 and filbur FC-1299; made in usa; microban inhibits the growth of stain and odor causing microbes like bacteria and algea Measures 8-15/16-inches in diameter by 19-5/8-inches in length and 3-inches of top and bottom hole diameter