This Replacement filter cartridge has the technical specifications as Unicel # C-9419, Pleatco # PAP200-4, Filbur # FC-0688 and meets the OEM # R173217 specifications. It is capable of managing the top load of 200 sq ft and best fit for Pentair Pool Products Predator, Clean and Clear, Pentair Pool Products-Pac Fab Re, Pentair Pool Products-American Prod, American Products. This 31 1/8 inch long and 10 1/16 inch wide filter cartridge has 6 inch open holes both at top as well as bottom. By opting this filter cartridge you get complete protection from dust, sand and worms and pure water for your pools and spas. Very easy to install this filter cartridge is made of superior quality of materials.