Pleatco PFAB 60-M Replacement Cartridge for Pentair Pool Prods / Pac Fab Pentair MY 60, Wet Institute 60 (3 required) (MICROBAN), 1 Cartridge Replacement filter for pool and spa cleaning systems 50% open ABS free flow cores maximize water flow through REEMAY filter media; Microban inhibits the growth of stain and odor causing microbes like bacteria and algea Antimicrobial end caps resist chlorine degradation and provide support to filter material for a longer life span 14-1/16-by-3-1/16-by-3-1/16-inches Made in the USA