Maintain crystal-clear pool water with Austin's® Pool Shock. This powerful 12.5% sodium hypochlorite solution boosts chlorine levels, kills bacteria, and keeps your pool sparkling clean. Ready-to-use and easy to apply, it's perfect for regular maintenance and weekly shock treatments. The economical concentrate comes in a case of 4 one-gallon bottles, making it a practical choice for commercial pool operators and facility managers. EPA-registered and suitable for all pool types, Austin's® Pool Shock ensures a safe and enjoyable swimming experience.