Swimming pool shock treatments are an essential aspect of pool opening but can also be used to give your pool a quick chlorine boost. The Malibu Shock Hard is our most popular and versatile pool shock treatment, used to kill algae and bacteria and remove micro-contaminants that make pool water cloudy.

• 1 lb. bag of water purifying chemicals for swimming pools
• 77.4% Active ingredients
• Shock treatment kills bacteria and controls algae in swimming pool water
• Restores a crystal clarity to pool water and enhances pool water quality
• Add at night or when swimming pool is not in use
• Use weekly during periods of heavy rain or heavy swim loads
• The safest and most effective SHOCK to get your pool going
• This Calcium Hypochlorite will not burn like every other Cal. Hypo. on the market so it is safer to store

This product is c