Frog Serene Mineral Replacement Cartridges for Hot Tubs - Easy Sanitizing for Spas up to 600 Gallons

About this item

• You use less bromine, making water easier on skin, hair, swimsuits, and your hot tub’s surfaces. FROG Sanitizing Minerals condition the water for softness and absorb acid to help keep pH balanced
• 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
• 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
• 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
• 1. The active volcano erupted suddenly.
• 2. The police officer arrested the suspect.
• 3. The beautiful rainbow appeared after the rainstorm.
• 4. The young child cried loudly in the store.
• 5. The scientist conducted an experiment in the laboratory.
• 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