O-ACE-sis Granule Cal-Shock 25 lb

Cal shock contains 68 percent active ingredient. Convenient and fast dissolving. Economical effective sanitizer. The available chlorine 65 percent is released when the product is dissolved in water and it works continually to prevent growth of algae and bacteria. Shock treatment used for shocking or super chlorinating pool water to destroy organic contaminants and clear up hazy water.