Haviland 10LB Hardness Plus Calcium Hardness Increaser For Pools SmartChlor All-in-one weekly system: consolidates start-up

All-in-one weekly system: consolidates start-up

The reinforced handle adds strength without bulk

Smith ladder uprights

between-cleaning use: spray

Pre-measured

Haviland 10LB Hardness Plus Calcium Hardness Increaser For Pools SmartChlor All-in-one weekly system: consolidates start-upHaviland 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