Waterway 817-0010 spa replacement filter cartridge, 10 sq.t. New in factory sealed wap. Dimansions:  4 1/4 " OD X 4"L,  2 1/16 opening top and bottom opening. Skim Filter 10 sq. ft. Interested, make an offer. From a smoke and pet hair free home. Fast shipping. See below for compatabel list of compatable filters this replaces.

Custom Molded Products 146949,  Custom Molded Products 25249,  Custom Molded Products 378900,  Custom Molded Products 817-0010, Cyanna Valley Spas (Viking) PWW10,  Icon/Keyes Spas 146949, Leisure Bay/Rec Warehouse 10146949, Leisure Bay/Rec Warehouse 25249, Leisure Bay/Rec Warehouse 378900, Waterway Plastics 817-0010, Unicel C-4310, Pleatco PWW10, Aladdin 11003