Liquid Calcium Hardness Up
Raises calcium levels to help reduce foam and protect the spa from harmful corrosion from soft water or low calcium hardness. The ideal hardness level for spas is 150-400 ppm.
- Raises hardness level in spa water to prevent corrosion
- Compatible with all sanitizers including bromine, chlorine, salt water, ozone, minerals and biguanide
Available Size: 32 fl. oz.