The Natural Chemistry Spa Calcium Hardness Increaser is a spa calcium hardness increaser that helps to bring the calcium hardness level up to an ideal range improves bathing comfort, reducing skin and eye irritation. Spa Calcium Hardness Increaser helps to protect spa surfaces and equipment and comes with an easy to dose measure cap.

Specifications:
• 1.75 lb. container
• Brings calcium hardness level to ideal range
• Reduces skin and eye irritation
• Protects spa surfaces and equipment
• Comes with easy to does measure cap