HTH Pool Care Calcium Hardness Increaser — Granules, 4 lb — Pool Chemical to Raise Calcium Hardness and Improve Water Balance

• Protects pool surfaces 
• Helps chlorine to work efficiently
• Prevents equipment damage
• Compatible with all swimming pools
  
   

About HTH® Pool Care
HTH® was developed with the pool owner in mind. We know that maintaining your pool water can be a lot of work. That’s why we're here every step of the way, helping you clear the uncertainty from pool care. With economical, easy-to-use solutions, HTH® is designed to work hard so you're prepared to tackle whatever life throws in your pool. From balancing your water to treating green water, we offer a full line of products to keep your pool water healthy and your swimmers happy.
 

Raise the calcium hardness of your swimming pool water to protect your pool surfaces and equipment from harm.

Raises calcium hardness levels
Helps prevent swimming pool water from becoming corrosive.
 

Protects & prevents corrosion
Protects pool liners, metal and plastic surfaces as well as equipment from damage.
 

You're all clear with HTH®
For best results, use HTH® 6-Way Test Strips weekly to test, balance and maintain calcium hardness levels between 200 and 500 ppm.