Pool Care Instant Shock (99% Di-Chlor) is designed to rapidly exterminate algae, slime, and unpleasant odors in your pool water. This product is recommended as a periodic shock treatment to control algae growth. Usage: Add 1 lb of shock treatment to 10,000 gallons of pool water at night or when not in use.

Specifications:

Part Number: QPC55151EACH

Quantity: 1 lb