This replacement filter cartridge has the technical specifications as Unicel # C-7494, Pleatco # PA131, Filbur # FC-1227 and OEM # CX1280XRE. It is a great quality filter cartridge that handles the top load of 131 sq ft. This 32 13/16 inch long and 7 inch wide filter cartridge has 3 inch holes both at top as well as bottom and it is best fit for Hayward CX1280 RE SwimClear C5025, CX1260RE SwimClear C5020, Super-Star-Clear C5000. By installing this filter cartridge you get complete protection from dust, sand and worms and get clean and clear water for your pools and spas. It is very easy to install and made of high quality materials.