The quality you expect with the performance you need, so you can enjoy your pool worry free. Dimensions and specifications of the cartridge. 4 x 145 Sqft of filtration area, media is 4 oz. 3 ID Top and bottom (open hole). 32-1/16″ L x 7″ OD x 3ID. End caps are both open with polyurethane material to provide high impact and perfect seal, our core is injection mold creating more stability than drilled PVC pipe. Pentair Clean and clear 520, CCP520, R173578. Cartridge meets OEM specifications. Package contains 4 cartridges.
