The Spa Frog Mineral Cartridge replaces the Mineral Cartridge in the SPA FROG® Floating System and the SPA FROG® In-Line System. The mineral cartridge lasts 4 months, or whenever you drain your spa.
Replacement mineral cartridge for the Spa Frog Floating and In-Line Systems
For Hot Tubs up to 600 gallons
Pre-filled cartridges for no mess, no guess and no stress water care
Kills bacteria with up to 50% less bromine
Mineral Cartridge lasts 4 months or whenever you drain your hot tub