Calcium Plus hardness increaser
$12.99
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Calcium Plus Hardness Increaser Calcium Plus (calcium chloride) increases the total hardness of pool water when levels fall below the recommended levels of 100-300 ppm. Calcium Plus will increase the total hardness of pool water. Deviation of the recommended 100-300 ppm can cause the pool water to be either corrosive and/or scale forming.
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