Spa Frog In-Line Bromine Cartridge

200 Grams Bromine Cartridge Frog Bromine Cartridge Features: Spa Frog Mineral Sanitizers are the only mineral systems for spas that work with low levels of bromine for the highest water quality. Mineral and bromine spa care. Bromine Cartridges work in the frog floating and in-line systems. Cuts maintenance time. Water feels softer with a crystal clear shine. Using less bromine helps reduce odors. Bromine cartridges last between 3-5 weeks depending on volume of water, number of bathers and usage.