Serene Bromine Replacement Cartridge for Hot Tubs up to 600 Gallons

The FROG Serene Fresh Mineral Water hot tub system employs Bromine and Mineral Cartridges that work in tandem to eliminate bacteria in two ways. This system can reduce bromine usage by up to 50%* and enhance the overall quality of hot tub water.

By utilizing less bromine, the water becomes gentler on the skin, hair, swimsuits, and the surfaces of your hot tub. The FROG Sanitizing Minerals condition the water for a softer feel and absorb acid, helping to maintain a balanced pH level.

The Bromine Cartridge can be adjusted to meet the specific needs of your hot tub and is designed to last 2-4 weeks per cartridge. It is pre-filled, making replacement quick and easy, and is also recyclable when empty.

Unlike chlorine, bromine dissolves gradually in hot water, making it easier to regulate. It also has significantly less odor and is less affected by pH fluctuations, resulting in more effective sanitization. This eliminates the need for constant monitoring.

The Mineral Cartridge must be replaced every 4 months to effectively sanitize the hot tub. It works in conjunction with the Bromine Cartridge to kill bacteria in two distinct ways.

For use in the FROG Serene (formerly Spa FROG) Floating System or In-Line System with the Mineral Cartridge (sold separately), the FROG Serene kills bacteria through a dual-action approach, utilizing a low level of bromine and FROG Sanitizing Minerals.

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