Unicel C-6430 | 30 sq ft Hot Spring Spa Filter Best Selling Fireplaces & Stoves 18% potassium peroxymonosulfate (DuPont Oxone)

18% potassium peroxymonosulfate (DuPont Oxone) in a pH-buffered carrier

An inside fit front for the Heatilator Caliber 36

Salt-system spas — the year-long fill cycle gives any contamination a full year to cause problems

and drain-and-refill if the water is more than 3–4 months old

and works across an enormous range of conditions

Unicel C-6430 | 30 sq ft Hot Spring Spa Filter Best Selling Fireplaces & Stoves 18% potassium peroxymonosulfate (DuPont Oxone)The Unicel C 6430 delivers 30 square feet of filtration across 124 pleats of heavyweight 4 oz Reemay polyester media. Built to meet or exceed OEM specifications, it's a direct replacement for the Hot Spring and Watkins cartridges used across a wide range of spas. 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