FreshWater Salt Cartridge | Salt System Refill Brand_DuraVent Hearthstone 7211-944 Blower Fan Kit

Hearthstone 7211-944 Blower Fan Kit

Superior Performance – Patent Pending

Both cartridges share the exact same 4-15/16 inch diameter and the same open 2-1/8 inch end caps

Eco-friendly

Utopia Tahitian 2002-2008

FreshWater Salt Cartridge | Salt System Refill Brand_DuraVent Hearthstone 7211-944 Blower Fan KitThe FreshWater Salt System Replacement Cartridge is the titanium electrode cartridge (sometimes called the "cell") that powers the FreshWater Salt System Watkins Wellness's saltwater sanitization technology built into compatible Hot Spring and Caldera hot tubs. It's the consumable component that converts dissolved salt into a steady, automatic supply of pure chlorine, keeping your spa water clean for months without measuring or dosing chlorine by