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Spa Frog Floating System uses pre-filled mineral and bromine cartridges that snap into a reusable floating holder which works in any spa. This system transforms your spa into the perfect environment for soothing relaxation with up to 50% less bromine than standard bromine spas. Cartridges are easily adjusted to meet the sanitizing needs of virtually any size hot tub.

Product notes: Replace the mineral cartridge every 4 months when you drain and refill your spa. The bromine cartridge will last 2-4 weeks depending on use.  Refill cartridges available.