Unicel 5CH-37 | 37.5 sq ft Hot Spring Filter Type_Thermometer it delivers superior water clarity

it delivers superior water clarity and efficient filtration — so you spend less time cleaning and more time enjoying your hot tub

If you've heard about the FROG® @ease system but you don't want to overhaul your existing water care routine

Dimensions 36 7/8" x 5 7/8"

driving cloudy water

Unicel 5CH-37 | 37.5 sq ft Hot Spring Filter Type_Thermometer it delivers superior water clarityThe Unicel 5CH 37 delivers 37. 5 square feet of filtration across 221 pleats of Reemay polyester media, capturing debris down to an average of 20 microns. Built to meet or exceed OEM specifications, it's the replacement cartridge for select Aquaterra and Hot Spring spas, taking the place of Watkins part 303279. Filtration is the quiet backbone of clean spa water. Every soak leaves behind body oils, lotions, hair, and fine debris, and the cartridge is