Spa Filter Cartridge 4H8-158-02 Two-Pack Replacement for PLEATCO PTL18P4 Dream Maker Gatsby SPA unicel 4CH-21 HOT TUB Cartridge filbur FC-0136

Top handle, 8' in length, 4-5/8' in diameter, bottom features a 1-1/2' MPT thread. Replaces Unicel 4CH-21, Pleatco PTL18P4, and Filbur FC-0121. Contains 18 sq. ft. of premium Reemay filtration fabric with an Expansive Flow core and antimicrobial end caps. Suitable for pools and spas manufactured by: Alcove, Atera, DM Industries, Dream Maker Spas, Maax Spas of AZ, Pageant Spas, Saratoga Spas, and Vita Spas