REPLACEMENT MODELS: Compatible with 580, CX580XRE, SwimClear C3025, SwimClear C3030, PA81/ -4/ PAK4, C-7483, FC-1225. Note: All manufacturers' names and part numbers remain the property of their respective holder(s) and are used for compatibility information only. Wowreed is an independent brand. SPECIFICATIONS: Length: 19 5/8"; Outer Dimension: 7"; Top/Bottom: 3" opening; Filtration Area: 4×81 sq. ft. EASY TO CLEAN: This filter utilizes fabric structure design so as to make the impurities easy to be released and washed. It is recommended to wash the filters every 2-6 weeks in order to maximize the performance and capacity of it. In addition, our premium filter material keeps your water clearer and easier to clean. LONG LIFE: The filters are with solid end caps, good material and bands, which can be used repeatedly. Longevity and endurance are ensured. SERVICE: If there is any question, please let us know! We promise a good shopping experience with our reliable control and testing. Pool Filter Compatible with 580, CX580XRE, SwimClear C3025, SwimClear C3030, PA81/-4/PAK4,C-7483, FC-1225