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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
user-friendly formula
chemical-resistant gasket that stands up to routine sanitizers and mineral treatments
tidy storage while the pool is in use
it delivers continuous protection that works with your existing sanitation system
Haviland 10LB Hardness Plus Calcium Hardness Increaser For Pools cleansing solution user-friendly formulaHaviland 10 LB Hardness Plus Calcium Hardness Increaser For Pools Intro Designed to safely raise calcium hardness in pool water, Haviland Hardness Plus protects surfaces from corrosion and premature wear. By restoring proper calcium levels, it helps prevent pitting, etched plaster, and metal corrosion. This granular formula is compatible with all sanitizing systemschlorine, bromine, mineral sanitizers, and biguanideso you can maintain a balanced water
