Cal-Hypo ZAP Super Strength Pool Shock gives you the boost of chlorine you need if you’re opening your pool for the season, or if you’re looking to superchlorinate bacteria and algae in your pool or spa. This shock is applied quickly and starts to work right away. Its powerful granules need to be pre-mixed to avoid staining vinyl liners, but allows for easier application. Cal-Hypo ZAP helps maintain sparkling clean swimming water that’s safe for you and your family to enjoy.
Store Cal Hypo shock away from other pool chemicals as it can be hazardous if it comes into contact with them.