Unicel 5CH-45 | 45 sq ft Freeflow Spa Filter Spa Water Care and a solid core that

and a solid core that holds its shape under pressure

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

that's your cue to check the underlying water chemistry

Adjustable emissivity

Temperature readings in both Fahrenheit and Celsius

Unicel 5CH-45 | 45 sq ft Freeflow Spa Filter Spa Water Care and a solid core thatThe 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