FROG Serene Mineral Replacement Cartridge + 4 Bromine Cartridges

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FROG Serene Replacement Cartridges for Week after Week of Amazing Hot Tub Water

FROG Serene is a complete sanitizing system that eliminates organic contaminants in two ways. It uses a low level of bromine and FROG Sanitizing Minerals to provide you with peace of mind.

FROG Sanitizing Minerals reduce bromine usage by up to 50%, making it ideal for long-term hot tub care. This bundle includes 4 Bromine cartridges, which last up to 4 weeks, depending on your hot tub size and usage. It's perfect for a 600-gallon hot tub, ensuring constant, refreshing water.

Included in this bundle is 1 FROG Sanitizing Mineral Cartridge, which lasts 4 months. These minerals eliminate organic contaminants, condition the water to feel soft, and absorb acids, significantly improving your hot tub experience.

Prefilled Bromine cartridges mean no more measuring or mess. Simply insert and you're good to go! No more stress about getting the right amount of bromine.