Get the absolute most out of your spa sanctuary with Sirona Calcium Booster. The unique liquid product goes into solution immediately to raise the level of water hardness, which helps prevent foaming and corrosion of equipment.

• Raises calcium hardness in spa water quickly, so you can focus on whole-self wellness
• Prevents foaming and equipment corrosion for a clean, soothing spa experience
• Liquid solution boosts calcium with this fast-acting and easy-to-use formula
• Keeps spa water between 150 and 400 ppm for clean, beautiful spa water you can relax in
• Unique liquid is compatible with chlorine, bromine, ozone and biguanide sanitizers