1. PLACEMENT MODELSA7470 Filter Cartridge compatible with Pentair CCP320, Pleatco PCC80 PAK4 PCC80, Unicel C 7470, Filbur FC 1976, Length: 20'; Outside Diameter: 7'; Top / Bottom Opening: 3'; Filtration Area: 80 sq. ft. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. is an independent brand. 2. NSF CERTIFIED spapool filter with NSF certified filter materials provides you with clean, fresh and clear water. Only select quality filters for your family to ensure the , and happiness of your loved ones. 3. EASY TO CLEANThe Trilobal Fabric Structure filter material makes it easy to release impurities when cleaning the filter, the filter is like a one after cleaning. It is recommended that you clean cartridges every 2 weeks to maximize your Pool's performance. 4. Long Service Life Unique Trilobal Filtration Fabric Structure make it easier to capture large volume of contiminants. It is also easy to wash/clean to recondition the filter. This filter lasts for 1 2 years when proper maintenance is performed.