The Pentair 25021-0224S Cartridge Filter Element for System 3 S8M500 Filters has a media area of 209 Square Feet and is made of superior reinforced polyester pleated material with polyurethane end caps. Pentair reusable cartridge filter elements provide a high degree of water clarity and longer filter cycles. To maintain your pool water cleanliness and clarity, Pentair genuine replacement cartridge elements are the number one choice in cartridge filtration.
Pentair filter elements are designed to meet NSF’s high quality performance and durability standards with Pentair filters. Only Pentair replacement filter cartridges will provide maximum hydraulic efficiency, exceptional first pass debris removal, and extended durability. This cartridge is individually packaged with the Pentair name on end caps and plastic wrap to identify as genuine Pentair parts.