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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Efficient heat retention helps your pool stay warmer for longer
The easy color comparison minimizes guesswork and helps prevent irritating water conditions
Once inserted into water
this socket cup delivers a reliable anchor point that stands up to outdoor poolside conditions
Description
Haviland Durachlor Hardness Increaser Size:4 lb Efficient heat retention helps yourThe Durachlor Hardness Increaser product is used to raise the total calcium hardness level in swimming pools. If proper calcium levels are maintained you can prevent the etching, pitting, and similar problems to the surfaces of plaster, masonary, and concrete pools. Raises calcium hardness levels Prevents surface corrosion Chlorine based
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