SPA FROG Serene Mineral Cartridge for Hot Tub - Blue - Lasts 4 Months!

SPA FROG Serene Mineral Cartridge for Hot Tub - Blue - Lasts 4 Months!

$36.95
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Spa Frog Serene Mineral Cartridge refill for use in either the Spa Frog Floating System, or for users of the Spa Frog Inline System which is factory-installed in the spa. Use with companion Frog Bromine Cartridge.  Lower your hot tub bromine use up to 50% with FROG Serene minerals. Makes water feel soft and is easier on your skin, swimsuits, and hot tub surfaces than chlorine, and has less chemical odor.

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