Set of 2 Hot Tub Filter Cartridges for Spa, Unicel 6CH-940, Pleatco PWW50P3, Waterway Front Access Skimmer and Filbur FC-0359 High performance material and quapté - 100% polyester fiber material, better capacity. Dust collection, which allows the filter to capture more contaminants and effectively trap leaves, insects, sediment, hair, etc. Give yourself a cleaner and healthier swimming environment. Compatible Models - The spa filter is compatible with most above ground and above ground swimming pools, hot tubs and whirlpool tubs. Hot tubs, indoor and outdoor swimming pools; Replacement for Pleatco PWW50-P3, PWW50P3, for Unicel 6CH-940, for Filbur FC 0359, for Waterway Plastics 817-0050,03FIL1400,25252, 378902. Size - Filter diameter: 150mm/5.9"; Height: 241mm/9.5" (with thread and handle); Thread: 46.5mm/1.8"; Filter area: 45 m² ; The connector is molded by injection, with a thicker and more flexible filter membrane. high strength and stronger suction power. Long life - The quapté