Description: 【Universal Compatibility】: This pool filter cartridge is designed to be fit for A, C, and III type filter, making it suitable for all above ground pools and pumps that use these filter types 【Enhanced Filtration Performance】: Featuring a triple layer filtration system made from composite filter cloth with an innovative 3 leaf structure and pleated design, this filter significantly increases the filtration area 【Functional】: Swimming pool filter effectively captures leaves, hair, sand, sediment, and more to maintain clean water quality 【Reusable Design】: Constructed with a double ayer hard ABS mesh structure that prevents collapse, this pool filter securely holds the central filter papers in place. The reinforced end cap are resistant to melting or breaking. Simply replace the middle filter paper when needed for eco friendly and cost effective solution 【Easy Maintenance】: The package includes 1 pool filter cartridge and 5 pool filter papers for convenient replacements every two weeks to maximize efficiency and protect water quality. When the paper gets dirty, simply open the cartridge and insert a new sheet for hasslefrees maintenance Specification: Material: Polyurethane and composite filter cloth Color: Multicolor for 28604, for 58012, for 58384, for 58387, for 58388E, for 58390E, for 58390, for 58389, for 58603, for 58604, for 56637, for 56638, for 56635, for 56636, for 59900E, for 29000E   Size Chart: 11cmx21.5cm/4.33inchx8.46inch Center hole diameter 1.9 inches   Package Includes: 1 Pool Filter Cartridge 5 Pool Filter Papers Note: Please allow slightly errors due to manual measurement and different monitors.