AMERICAN Cartridges AA-H420 Pool Filter 4 Pack; Replaces Pentair Clean & Clear Plus CCP420 and 420, 178584, Ultral-A6, Unicel C-7471, 817-0106, R173576, Filbur FC-1977, POOLPURE PCC105/ L x OD: 26"x7"(Dimensions) Length: 26" , Outside Diameter: 7" , Top 3" Open, Bottom 3" Open, Material: 4oz , 105 Sq. ft per filter 100% Made In America NSF 50 Rated Material (Compatible Brands) Pentair Clean and Clear CCP420, 160301, Waterway Crystal Water 425, 570 0425, SD 00163, AK 60431, Aladdin 20503, Filbur FC 6470. All manufacturing names and part numbers have been used for reference only

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Droplet tests and spin lab tests are also great ways to accurately track progress

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it is compatible with Intex 2900E/59900E

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clearwater II Pro Clean 100

Waterway Crystal Water 425

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READ EACH BULLET POINT CAREFULLY OR PRODUCT WILL NOT WORK

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high amounts of chlorine can stop the product from working correctly