FROG Serene Mineral Cartridge
For use in the FROG Serene Floating and FROG In-Line Systems. Lasts 4 months or until hot tub is drained and refilled. Simply discard
and replace.
For use in the FROG Serene Floating and FROG In-Line Systems. Lasts 4 months or until hot tub is drained and refilled. Simply discard
and replace.
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