HTH 42047 Swimming Pool Care 1 Chlorine Tabs, Swimming Pool Chlorinating Sanitizer, 5lbHTH Chlorinating Tabs are a simple, convenient way to keep your pool water clean and clear. Simply place tab(s) into the skimmer basket, floater, or feeder to sanitize and protect your pool water from algae and bacteria. They are sun protected and designed to dissolve slowly, giving your pool a steady source of available chlorine for up to one week. HTH Chlorinating Tabs are great for all pool types, including small pools, pop-up and above-ground pools, vinyl-lined pools as well as saltwater systems. Available in 1 and 3 tabs. How To Use: Follow the on-pack instructions to place tab(s) in your swimming pool feeder, floater, or skimmer. The number of tabs you use depends on your pool size. Do not add tabs directly to the pool as this can cause damage to pool surfaces. Repeat every week or as often as needed to maintain a chlorine residual of 1-4 ppm. About HTH Pool Care: HTH was developed with the pool owner in mind. We know that maintaining your pool water can be a lot of work. Thats why were here every step of the way, helping you clear the uncertainty from pool care. With economical, easy-to-use solutions, HTH is designed to work hard so youre prepared to tackle whatever life throws in your pool. From balancing your water to treating green water, we offer a full line of products to keep your pool water healthy and your swimmers happy.