King Tech Frog Serene Bromine Replacement Cartridge
BROMINE CARTRIDGE used with Frog Serene Floating System and Frog Serene In-Line System .
Frog Serene Mineral System uses pre-filled mineral and bromine cartridges that snap into a reusable floating holder and works in any spa.
The Frog Serene Floating System transforms your spa into the perfect environment for soothing relaxation, sanitizing with up to 50% less bromine (1.0 ppm) than standard bromine spas.
Frog Bromine Cartridges are easily adjusted to meet the sanitization needs of virtually any size spa. The bromine cartridge will last 2-4 weeks depending on use.