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Robarb Spa Specialties Calcium Hardness Up raises hardness levels to prevent corrosion. Calcium Hardness Up increases water hardness to prevent foaming, equipment corrosion and scaling. Compatible With: Chlorine, bromine, ozone, biguanide sanitizers, as well as salt water pools. Spa water requires some calcium to be present.
Shipping Note: Shipping to Alaska, Hawaii, PO Boxes and APO addresses not available for this item
Warranty: 90 Day Woot Limited Warranty
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