Home > Hot Tub Accessories > FROG Serene Mineral Replacement Cartridge + 4 Bromine Cartridges for Hot Tubs, for use only with FROG Serene Floating Sanitizing System for Spas up to 600 gallons, Quick and Easy Hot Tub Sanitizer ; Visit the FROG Store
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FROG Serene Mineral Replacement Cartridge + 4 Bromine Cartridges for Hot Tubs

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3,428 reviews covering 29 products for the category Hot Tub Accessories

Experiential insights by users

About FROG Serene Mineral Replacement Cartridge + 4 Bromine Cartridges for Hot Tubs
93% appreciated its high-quality construction
With a setting of 1 or 2, the cartridges last a long time, which is more than enough for my average hot tub.
97% found it easy to install
The cartridges are easy to use and install in my spa.

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