Unicel 5CH-752 | 75 sq ft Cal Spas Filter Cartridge Brand_SimpliFire Pinpoint Calf Massage

Pinpoint Calf Massage

Most spa owners run two cartridges in rotation — one in the tub while the other dries after a deep clean — and replace the set roughly once a year

DuraVent 3PVP-WTI PelletVent Wall Thimble - 3"

Feeding chlorine through a skimmer is convenient and it's what most pool owners naturally reach for

Ideal for spas up to 10 feet

Unicel 5CH-752 | 75 sq ft Cal Spas Filter Cartridge Brand_SimpliFire Pinpoint Calf MassageThe Unicel 5CH 752 is a 75 square foot top load replacement cartridge for Cal Spas, and it is a genuinely impressive piece of packaging. Seventy five square feet of filtration is normally the territory of wide body cartridges eight inches or more across. This one delivers it from a slender 5 3 16" diameter, achieved by running tall 16 1 8" and folding the media into 194 pleats. The result fits into a narrow filter well that a wide cartridge could