Leslie's Power Powder Plus 73-73% Granular Calcium Hypochlorite (Cal-Hypo) Swimming Pool Shock Sanitizer - 70% Available Chlorine- 1 Pound

Leslie's Power Powder Plus dissolves quickly, destroying bacteria and algae for a clean and safe pool you can enjoy all year round. Pool Chemical Features Pool powder shock and super-chlorinator Quickly dissolves Eliminates bacteria, algae and other contaminants 73% available chlorine 1 lb treats 16,500 gallons The Power Powder Plus by Leslie's is quick to get the job done so you can return to the water. The Power Powder Plus is the fastest dissolving shock on the market, ensuring a quick shock and preventing the chance of particle staining. The shock is comprised of 73% chlorine to handle the toughest of bacteria and algae for a sparkling clean pool.