The Spa Frog Mineral Cartridge is the ultimate solution for easy and effective hot tub care. Designed for use with the Spa Frog Floating System or factory-installed Spa Frog Inline Systems, this refill works exclusively with select hot tub brands like Artesian Spas, Marquis Spas, Caldera, and Hot Springs. Pair it with the companion Frog Bromine or Chlorine Cartridge for a complete sanitizing solution.

This innovative cartridge kills bacteria in two ways—using a low level of chlorine combined with FROG Sanitizing Minerals—ensuring clean, crystal-clear water. The minerals last up to 4 months, while Bromine or Chlorine cartridges last up to 4 weeks, making it ideal for hot tubs up to 600 gallons. With up to 75% less chlorine usage and consistent low Free Chlorine levels, the Spa Frog Mineral Cartridge offers a safer, more enjoyable hot tub experience with less maintenance.