Description: Description: Length: 8 1/4""; Outside Diameter: 6"; Bottom: 1 1/2" SAE thread. Filtration Area: 45 sq. ft. PLF6CH-940 Hot Tub compatible PWW50P3 (Not PWW50P4), 6CH-940, Filbur FC-0359, Waterway Plastics 817-0050. Pool Filter Cartridge Replacements, This 6CH-940 filter massage pool filter could make sure the water clean and fresh The filter efficiently removes hair, leaves, dust, sediment, sand, etc.Strong Filtration of the filter cartridge. 6CH-940 hot tub filter is made unique trilobal filtration fabric structure, durable which could make the filter cartridge achieve reusable Specification: Compatible with the following model : for PWW50, for 6CH-940, for Filbur FC-0359, for Waterways 817-0050 Size Chart: Size: 15x24.3cm/5.9x9.56 inch Package Includes: 1 Piece Filter Cartridge Replacement : Colors might be different due to different display. Please allow slightly difference in size due to manual measurement. Specifications: Compatible with the following model : for PWW50, for 6CH-940, for Filbur FC-0359, for Waterways 817-0050 Size: Size: 15x24.3cm/5.9x9.56 inch Note: Colors might be different due to different display. Please allow slightly difference in size due to manual measurement. Package included: 1 Piece Filter Cartridge Replacement