SpaGuard Calcium Hardness Increaser (12oz)
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- SpaGuard Spa Calcium Hardness Increaser (12 oz)
- add 1tbs. per 100 gallons to increase your hot tub calcium hardness 25ppm.
- Prevents corrosion of equipment and etching of plaster due to low calcium hardness.
- Product Information: Granular calcium chloride 1 tablespoon per 100 gallons increases calcium hardness 25ppm
- Prevents corrosion of equipment due to low calcium hardness Prevents etching of plaster due to low calcium hardness