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.

Useful Tips

• 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.