Unicel 5CH-37 | 37.5 sq ft Hot Spring Filter Brand_Flame Boss This pleated cartridge is the

This pleated cartridge is the durable half: rinse it

Travis Industries NG - SIT 1

Hearth & Home Technologies - GFK-210-C Blower Fan Kit

yellow mustard algae and pink slime

but with Ag+ in the filter

Unicel 5CH-37 | 37.5 sq ft Hot Spring Filter Brand_Flame Boss This pleated cartridge is theThe 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