SpaGuard’s Calcium Hardness Increaser enables spa owners to increase their calcium hardness with this easy to use granular formula.
SpaGuard Calcium Hardness Increaser
Calcium Hardness Increaser in a pelletized form for faster and thorough dissolving in hot water applications.
Proper Calcium Hardness prevents corrosion of the spa or hot tub’s equipment and aids in the prevention of etching of the spa surface.
Maintain Calcium Hardness between 100 ppm and 200 ppm.