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We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
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Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
LifeLine Calcium Hardness Increaser 15lb is a granular calcium chloride product used to raise calcium hardness in pool water, helping prevent corrosion, etching, and other damage caused by “soft” or under‑balanced water. By keeping hardness in the recommended range (commonly about 200–400 ppm, minimum around 150 ppm), it supports long‑term protection of plaster, vinyl, and equipment while improving overall water balance.
Key features & benefits
Use & basic dosing approach
LifeLine Calcium Hardness Increaser 15 lb fits neatly into a professional balancing program, giving you a simple way to protect your pool surfaces and hardware while supporting clear, comfortable water.
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