Powerful chlorine shock treatment that is great for regular maintenance.Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.Main active ingredient is 68% Calcium Hypochlorite (Cal-Hypo) for quick sanitizing.Dosage: 1 Pound per 10,000 gallonsCal-Chlor granules can be used in swimming pools, spas and hot tubs. Must pre-dissolve/dilute to prevent bleaching of the liner.
