Professional & Consumer Grade Liquid Pool Shock Oxidizer. Case of (4) One Gallon Size Containers. 12.5% sodium hypochlorite. Liquid Pool Shock (4) 1-Gallon Case Pack - 12.5% Sodium Hypochlorite $59.99PriceExcluding Sales TaxSize4-Pack; 1-Gallon ContainersQuantityAdd to CartBuy Now