Pleatco PCD75 Replacement Cartridge for Caldera 75, 1 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 14-7/8-by-2-inches Male Slip with swivel handle Made in the USA