Spa Frog Filter Frog Mineral Cartridge Spa Hot Tub Silver Ion Water Treatment

Reduce the usage of chlorine and bromine by up to 50%, stop faded swimsuits and powerful odors with FILTER FROG®. Designed to fit conveniently inside of your spas filter cartridge, this is the only hot tub mineral sanitizer designed with the patented FROG® mineral protection for hot tubs up to 600 gallons, FILTER FROG lasts up to 4 months, and features an easy reminder dial to help you remember when to replace it. Supplement with a low level of chlorine or bromine and hot tub care is complete with soft water and a crystal clear shine.