hth Pool Sanitizer 3" Chlorinating Tables 4-in-1 (42013)

When used as directed, this product is an effective swimming pool water sanitizer. These convenient and easy to use hot super chlorinating tablets are formulated to protect against chlorine loss in direct sunlight and can be used in feeders. In addition to sanitizing, this product also provides the added benefit of clarifying your pool water. They are designed to dissolve slowly providing a steady source of available chlorine (up to 1 week) to control the growth of algae, kill bacteria and destroy organic contaminants. For crystal clear pool water, follow our hot 4 step pool care program: Step 1: Test and adjust pool water balance, Step 2: Sanitize, Step 3: Shock treat your pool at least once a week, and Step 4: Add algaecide regularly.