Arch Chemical 28207 HTH 3-In-1 Chlorinating Skimmer Tablets, 16.3-Pound
The HTH 16.3-pound 3-In-1 Chlorinating Skimmer Tablets Kills Bacteria and Controls Algae. Contains Scale Inhibitor and Skin Softener. Approximately 9-1/2-ounce Tablet. Active Ingredient: Calcium Hypochlorite-40-55-percent. Minimum Available Chlorine 45-percent.