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easy-install chemical feeder that works with your existing sanitizer to deliver mineral-enhanced disinfection
chemical-resistant gasket that stands up to routine sanitizers and mineral treatments
Designed for straightforward results
user-friendly formula
Haviland 10LB Hardness Plus Calcium Hardness Increaser For Pools cleansing solution easy-install chemical feeder that worksHaviland 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
