SpaGuard Spa Calcium Hardness Increaser - 12 Ounce

SpaGuard Spa Calcium Hardness Increaser - 12 Ounce

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  • 1 tbs. per 100 gallons raises calcium hardness 25ppm
  • Prevents corrosion of equipment due to low calcium hardness
  • Prevents etching of plaster due to low calcium hardness