Unicel 2000 Series 8.5 sq. ft. Replacement Filter Cartridge | C-2303 C8418 Note from Unicel: The 4CH-50

Note from Unicel: The 4CH-50 replaces cartridges that use a 1-1/2" MPT bottom fitting and match the dimensional envelope above (14 3/4" length × 4 5/8" OD)

When water clarification cannot be achieved

71 lb Bottle

Natural Chemistry Clear and Perfect - 1 Qt Bottle / 32 oz

Unicel 2000 Series 8.5 sq. ft. Replacement Filter Cartridge | C-2303 C8418 Note from Unicel: The 4CH-50The Unicel C 2303 is a 2000 Series 8. 5 sq. ft. replacement filter cartridge engineered for compact spa and chlorinator filter systems. With 150 precision pleated layers of 3 oz. Reemay 2033 polyester media, this cartridge delivers consistent sub micron particle capture in a slim 2 7 8" diameter profile purpose built for the tight tolerances of Rainbow Plastics and Emerald Spa filtration housings. Specifications Filter Area 8. 5 sq. ft. Length 17 1