A convenient granular for raising calcium hardness.
100% Calcium Chloride
Raise calcium hardness in water to recommended level
Instantly raise calcium hardness in your pool water.
Help protect pool surfaces, plumbing, and equipment from corrosive conditions
Add when hardness levels fall below 150 ppm to prevent staining and corrosion.
 
*Viscount label may be substituted for another name brand label in stock of the same size with the exact same chemical composition.
 
*Caution keep out of reach of children*