Sirona™ Calcium Booster: Calcium Increaser for Hot Tub

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

The calcium increaser for hot tub 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
Calcium increaser for hot tub 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