Pool Solutions Cal Shock 65 is 100% Calcium Hypochlorite with 65% available chlorine. Our best selling shock treatment, Cal Shock 65 is in a fast dissolving granular form so it quickly destroys organic waste, algae and bacteria saving you time and money. 

• 1 lb bags Calcium Hypochlorite
• Powerful shock treatment great for spring start up
• Gives quick chlorine boost
• Ensure pool water is balanced for best results
• Complete instructions for dosage on container