Unicel 5CH-37 | 37.5 sq ft Hot Spring Filter Brand_Flame Boss For perfect sear marks on

For perfect sear marks on your food

it's big — nearly 20 inches tall and almost 9 inches across

yellow mustard algae and pink slime

This pleated cartridge is the durable half: rinse it

Unicel 5CH-37 | 37.5 sq ft Hot Spring Filter Brand_Flame Boss For perfect sear marks onThe 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