SpaGuard 12oz. Calcium Hardness Increaser, CHESG42258 – Spa Palace
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SpaGuard Calcium Hardness Increaser (12oz.), CHESG42258

Regular price $ 9.95 $ 9.82 Sale

When spa water is too soft you have low levels of calcium, which can lead to corrosion of equipment and foaming in the water. By adding SpaGuard Calcium Hardness Increaser you raise low calcium hardness and avoid these adverse affects.


  • Prevents corrosion of equipment
  • Prevents degradation of spa surfaces
  • 1 tbsp. per 100 gallons increases calcium hardness ~25 ppm