Purzest C-5030 Ultra Pool Filter Cartridge, 4 Pack, Compatible with Hayward SwimClear C5030, 524 Sq Ft, 30-Micron

["VERIFY YOUR SIZE FIRST: Each cartridge measures 19.6\" in length, 7.1\" outer diameter, and 3.1\" inner diameter. Confirm your filter dimensions before ordering.","GUARANTEED COMPATIBILITY: This 4-pack replaces Pleatco PA131-PAK4, Unicel C-7494, and Filbur FC-1227, and fits Hayward SwimClear C5030, C5025, C5020, and Super-Star-Clear C5000 filter systems.","30-MICRON TRILOBAL FILTRATION: Features high-density fabric with 40% more fibers than standard cartridges, trapping fine particles more effectively and reducing clogging for longer intervals between cleanings.","PREMIUM BUILD QUALITY: Constructed with heavy-duty 5 oz fabric, reinforced ABS end caps, a stabilized support core, and stabilizing bands, delivering up to 30% longer service life than standard cartridges.","524 SQ FT FILTRATION AREA: Each cartridge provides 524 square feet of filtration surface, making this 4-pack well-suited for handling heavy pool usage and maintaining consistently clear water."]