Unicel C-5431 Replacement Filter Cartridge | Hot Springs Spas 31233 | 30 Sq. Ft. | 10 1/4" Mineral Refills & Cartridges This prevents tearing during installation

This prevents tearing during installation and extends seal life

inspect the mating O-rings and gaskets for compression set or cracking — these are common wear points on aboveground pumps and are best replaced at the same service interval

uneven heating

Both the tempered lens and sealing gasket are included in a single order

non-toxic formula to clear pool water safely and quickly

Unicel C-5431 Replacement Filter Cartridge | Hot Springs Spas 31233 | 30 Sq. Ft. | 10 1/4" Mineral Refills & Cartridges This prevents tearing during installationThe Unicel C 5431 is a 30 sq. ft. replacement filter cartridge precision engineered to replace Hot Springs Spas OEM part #31233. Built with 157 pleats of 3 oz. Reemay 2033 polyester media in a compact 10 1 4" body, this cartridge delivers consistent filtration performance and water clarity in your Hot Springs spa. IMPORTANT: Full Filter Service Requires 5 Cartridges Compatible Hot Springs spa models (including Grandee, Vista, Envoy, and Aria) require