Features . 5 5 in Inorganic Antimicrobial Swimming Pool Replacement Filter Core Cartridge. Replacement filter for pool and spa cleaning systems. 50 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 Specifications . Dimension 5 5 H x 4 4 D. Material Plastic Polyester. Size 5 5 in . Weight 1 lbs