About: The Freshwater Mineral Spa Sanitizer is used as a crucial component of all sanitation systems. The silver beads inside introduce silver ions that help fight bacteria & also allow you to reduce the level of chlorine in your hot tub. This cartridge must be replaced every 4 months. *Previously known as the Silver Ion Cartridge*.

• It’s easy to install.
• Keeps spa water clean and crystal clear.
• Silver kills bacteria and lowers chlorine usage.
• A difference you can see, feel and smell.

Comes with 3 Mineral Cartridges – 1 Year Supply.

Compatible With: Freshwater Ozone System, Freshwater Salt System, Bromine System.