Spa Frog Mineral Sanitizers are the only mineral systems for spas that work with low levels of bromine or chlorine for the highest water quality.
The Spa Frog System uses pre-filled mineral and bromine cartridge that snap into a reusable floating holder and works in any spa. The Spa Frog Floating System transforms your spa into the perfect environment for soothing relation with up to 50% less bromine than standard bromine spas.
Cartridges are esliy adjusted to meet the sanitixing needs of virually any size spa. Replace the mineral cartridge every four months when you drain and refill your spa. The bromine cartridges will last two to four weeks depending on use.
* Northern Hot Tub Covers includes 3 green high capacity bromine cartridges in this bundle.