Residue-free, quick-acting hot tub & spa water treatment balancer. Used to increase calcium hardness levels in the water.
Helps to prevent erosion of pool surfaces and corrosion of metal surfaces.
The ideal calcium hardness range is 100-200 ppm.
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Celebrate 40 Years With Us!
Our stores are fully stocked. We are celebrating 40 years with in-store sales and extended store hours. Plus, we are always open online!
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