Frog Serene Mineral Replacement Cartridges for Hot Tubs (2-Pack) - Quick & Easy Sanitizer for Spas up to 600 Gallons

About this item

• The FROG Serene Fresh Mineral Water hot tub system uses Bromine and Mineral Cartridges that eliminates organic contaminants, reduce bromine use by up to 50%* and improve the overall quality of hot tub water
• Unlike chlorine, bromine slowly dissolves in hot water so it’s easier to regulate, has far less odors and is less impacted by pH swings making sanitizing more effective. Say goodbye to constant monitoring
• Using less bromine improves skin, hair, swimsuits, and hot tub surfaces. FROG Sanitizing Minerals condition water for a soft feel and absorb acid to maintain pH balance.
• Each Mineral Cartridge lasts four months or whenever the hot tub is drained and refilled. It’s prefilled, eliminates the work and guesswork, and makes replacement quick and easy, plus it’s recyclable when empty
• For use in FROG Serene (formerly Spa FROG) Floating System or In-Line System with the Bromine Cartridge (sold separately); FROG Serene eliminates organic contaminants 2 ways with a low level of bromine and FROG Sanitizing Minerals