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Ships within 48 hours · Estimated delivery Oct 30 - Nov 4
leak-resistant performance with straightforward installation
All-in-one weekly system: consolidates start-up
Exact compatibility with CMP 27180-037-000/27182-037-000
Brand-wide compatibility: Suitable for all major salt chlorine generator brands
Haviland 10LB Hardness Plus Calcium Hardness Increaser For Pools SmartChlor leak-resistant performance with straightforward installationHaviland 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
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