Swimming Pool Filter: 100% Polyester Fiber Material, Better Dust Collecting Ability, Replacement Filter For Swimming Pool And Spa Cleaning System Product Size: Swimming Pool Filter Diameter: 150Mm / 5.9In ; Height: 241Mm / 9.5In; Thread: 46.5Mm / 1.8Inch Product Features: Swimming Pool Filter Collapsible Design Increases The Filter Area, Small Pressure Difference, Large Flow Rate, Long Use Time, Can Be Cleaned And Saves Costs. Product Compatibility: The Pool Filter Is Compatible With Most Indoor And Outdoor And Above Ground Pools, Indoor And Outdoor Hot Tubs And Hot Tubs. Perfect Job: The Filters Of Pool Are Essential To Keep Lay-Z-Spa In Top Working Order. Simply Connect It To Your Spa And It Will Filter Dirt And Grime From The Water To Keep It Clean And Healthy. suitable for: Pleatco PWW50, Unicel 6CH-940, Filbur FC-0359, Waterways 817-0050 AIso can be used in the following spas: Aber Hot Tubs, American Spas, Apollo Spas, Arcadia Spas, Belize Spas, Blue Pacific Spas, Canspa Manufacturing, Catalina Spas, Charisma Spas, Clearwater Spas, Custom Molded Products, Dakota Spas, Dynasty Spas, Freestyle Spas, H2O Spas, H2O Spas, Haven Spas, Hawkeye Spas, Infinity Spas, Infinity Spas. Tennessee, Islandander Spas, Leisure Cove Manufacturing, Millennium Spas, Phoenix Spas, Rec Warehouse, Santa Barbara Spas, Spas, Sun Belt Spas, Premium Spas, Thermal Spas, Tuff Spas, Viking Spas , Vita Spas, Waterway Plastics