Cal-Shock, 1lb

Contains 65% available chlorine. Easy to use and fast dissolving. Economical, effective sanitizer. The chlorine is released when the product is dissolved in water and it works continually to prevent growth of algae and bacteria. Used for shocking or super chlorinating pool water to destroy organic contaminants and clear up hazy water. Can also be used as a sanitizer and disinfectant in a variety of other applications.