Unicel 5CH-45 | 45 sq ft Freeflow Spa Filter Spa Water Care Pro Tip: Don't confuse this

Pro Tip: Don't confuse this with the 6CH-940 — the specs look identical on paper

Adjustable emissivity

and calcium in solution so they don't react with other chemicals in the water

breaks down cleanly into harmless byproducts

or when adding make-up water

Unicel 5CH-45 | 45 sq ft Freeflow Spa Filter Spa Water Care Pro Tip: Don't confuse thisThe Unicel 5CH 45 delivers 45 square feet of filtration across 225 pleats of Reemay 2033 polyester media. Built to meet or exceed OEM specifications, it's the replacement cartridge for Freeflow Spas Legend models and other systems using this fitment. Filtration is the quiet backbone of clean spa water. Every soak leaves behind body oils, lotions, hair, and fine debris, and the cartridge is what removes all of it before it clouds the water, feeds