FROG Serene Mineral Cartridge

The cartridge typically lasts for four months, depending on your hot tub usage and water volume. It is designed to provide consistent mineral output throughout that period before needing a replacement.

No, it acts as a mineral sanitizer that works alongside a low level of chlorine or bromine. While it significantly reduces the amount of harsh chemicals required, you will still need to maintain a small residual of sanitizer to keep the water fully disinfected.

This cartridge is designed for use with FROG Serene in-line or floating systems. If your hot tub does not have a dedicated FROG housing system, you will need to use the floating holder to utilize the cartridge.

The minerals themselves are pH neutral, but they are designed to help keep your water balanced more easily. You should still test your pH and alkalinity levels weekly to ensure your water chemistry remains within the recommended range.

This specific cartridge is rated for hot tubs up to 600 gallons. If your spa exceeds this capacity, you may need to adjust your maintenance schedule or consider a different sanitizing solution.