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Ships within 48 hours · Estimated delivery Oct 26 - Oct 31
IMPORTANT: SET OF 2 CARTRIDGES
Length 10 1/2" Outer Diameter 7" Top Inner Diameter N/A Bottom Inner Diameter N/A Material 3 oz
Heavy duty
Excel Filters: XLS-718
Bottom Cap: open w/ slots
Unicel 4000 Series 19 sq. ft. Replacement Filter Cartridge | 4CH-21 Pool Lighting IMPORTANT: SET OF 2 CARTRIDGESThe Unicel 4CH 21 is a 4000 Series 19 sq. ft. replacement filter cartridge engineered for top load spa and hot tub filtration systems with a 1 1 2" MPT threaded suction connection. With 158 pleats of 3 oz. Reemay 2033 polyester media, this cartridge delivers consistent particle capture and reliable water clarity in compact spa filter housings. The molded cone handle on top simplifies removal at service time, while the 1 1 2" male pipe thread bottom
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