Master Clear Calcium Hardness Up – 20 lb. – Powdered calcium hardness increaser

Raises the Calcium Hardness level in your spa or pool water.  The ideal total hardness level in your spa or pool should be between 200 & 400 ppm.  Calcium Hardness Up is a powdered form of calcium chloride designed to raise the calcium content of your water.  Water hardness will also decrease brittle plumbing & jets, increasing the life of your spa.

Equivalent to: Leisure Time Calcium Booster or Baquacil Calcium Hardness Increaser