From the Manufacturer
Intex filter cartridge – Cartridge B – to be used for the larger pools – 24 feet and largerEasy to clean dacron filter material. Shrink wrapped with litho label. Replace cartridge every two weeks. For filter pump item#56633/56634/56621/56622/56611/56612. Easy to change

Swimming Pool Filter Cartridge For Use With Filter Pump #56631 & #58621 For 18′ & 24′

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Intex filter cartridge – Cartridge A – to be used for the smaller pools – 8′ – 18′ Easy Set Pool Models, All of the Oval Frame pool models & the 18′ Rectangular Frame Pool Models. Easy to clean dacron filter material. Shrink wrapped with litho label. Replace cartridge every two weeks. For filter pump item#58603/58604/56637/56638/56635/56636. Easy to change

Replacement Filter Cartridge For #58623, #58624, #58632 Pumps Easy To Clean Shrink Wrapped With Litho L (more…)