Focus Multi Function Shock 5lbs - Quick Dissolving

Focus Multi Purpose Shock is neccessary at the beginning of the season, during hot weather, and following heavy rain or windstorms. Focus Multi Purpose Shock is a highly effective sanitizer that kills harmful bacteria, aids in algae control and helps keep the pool clean and clear. It . Focus Multi Purpose Shock is a powerful sanitizer that will provide you with the results you need to create a healthy swimming environment.