2 Pieces Spa Filter Cartridge, For Pleatco Pww50 Hot Tub Filterspa Filter For Unicel 6ch940jacuzzi Spa Business Whirlpool Replacement FilterSwimming Pool Filter: Polyester Fiber Material, Better Dust Collecting Ability, Replacement Filter For Swimming Pool And Spa Cleaning SystemProduct Size: Swimming Pool Filter Diameter: 150Mm 5.9In ; Height: 241Mm 9.5In; Thread: 46.5Mm 1.8InchProduct 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 LayZSpa 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.