Widely Compatible Models: Our pool filter cartridge is widely compatible with C4030, C4025, C4020, CX880XRE, PA106, PA106-PAK4, PA106-4, Unicel C-7488, Unicel C-7488-4, Filbur FC-1226, Darlly 71061, SD-00366, XLS-722 Pool Filter Parameter Details: Length: 25 1/2"; Outside Diameter: 7"; Top Open: 3"; Bottom Open: 3" ; Filtration Area: 106 sq. ft; NOTE: This is a compatible part. Original manufacturers' names and part numbers are for reference only. KEEPURE stands as an independent brand Premium Material and Special Design: The c4030 pool filter cartridges utilizes advanced trilobal fabric technology to effectively remove impurities, hair, leaves, sand, sediments, dust, and more from the water, brings a clean and healthy water for your pools Repeated Using and Easy Cleaning: The c4030 pool filter advanced trilobal fabric provides maximum dirt holding capacity, keeps your pool water fresh and clear easily than others. You just need to scrub the fabric with a cartridge cleaner tool every 2 - 3 weeks and rinse it with a garden hose will helps to save your time and money together Quality Assurance: We c4025 pool filter cartridges provide 6 months return policy in case of any quality issues with our products. We prioritize our customers' satisfaction and strive to ensure a seamless experience with our offerings. Moreover, our professional team is dedicated to providing 7-24H support to every customer. Thanks for choosing us Widely Compatible Models: Our pool filter cartridge is widely compatible with C4030, C4025, C4020, CX880XRE, PA106-PAK4, C-7488, FC-1226, Darlly 71061, SD-00366 Pool Filter Parameter Details: Length: 25 1/2"; Outside Diameter: 7"; Top Open: 3"; Bottom Open: 3" ; Filtration Area: 106 sq. ft; NOTE: This is a compatible part. Original manufacturers' names and part numbers are for reference only. KEEPURE stands as an independent brand Premium Material and Special Design: The c4030 cartridge filter utilizes advanced trilobal fabric technology to effectively remove impurities, hair, leaves, sand, sediments, dust, and more from the water, brings a clean and healthy water for your pools Repeated Using and Easy Cleaning: The c4030 pool filter cartridges advanced trilobal fabric provides maximum dirt holding capacity, keeps your pool water fresh and clear easily than others. You just need to scrub the fabric with a cartridge cleaner tool every 2 - 3 weeks and rinse it with a garden hose will helps to save your time and money together Quality Assurance: We c4025 pool filter cartridges provide 6 months return policy in case of any quality issues with our products. We prioritize our customers' satisfaction and strive to ensure a seamless experience with our offerings. Moreover, our professional team is dedicated to providing 7-24H support to every customer. Thanks for choosing us