Leisure Time Calcium Booster 1LB

Leisure Time Calcium Booster (liquid) helps to increase water hardness to prevent foaming and equipment corrosion, extending the life of your spa. Compatible with chlorine, bromine, ozone, and biguanide sanitizers.

• Maintain a hardness level of 150-400 ppm
• 1 oz. per 500 gallons of water will raise 7 p.p.m.