FROG® Serene Cartridge Kit | 1 Bromine + 1 Mineral Type_Pizza Attachment filter upkeep matters more

filter upkeep matters more

lingering odors

fireplace or insert

A single 3 lb bottle treats up to 500 gallons and lasts the entire cycle

That distinction matters

FROG® Serene Cartridge Kit | 1 Bromine + 1 Mineral Type_Pizza Attachment filter upkeep matters moreThe FROG Serene Cartridge Kit is the multi pack refill for FROG's bromine based Serene system one bromine cartridge and one mineral cartridge, giving you approximately four months of water care supply for a single hot tub. It works with both the FROG Serene Floating System (the dispenser that floats in your spa) and the factory installed FROG In Line System built into many hot tubs. The math is straightforward. Each Serene bromine cartridge lasts 24