HTH 8 lbs. 3 in. Chlorinating Tabs Ultra

HTH Ultimate 3 in. Chlorinating tablets keep your pool clean and clear with a 6-in-1 formula that sanitizes pool water and prevents stain and scale. This formula includes built-in algae protection, clarifier and water softener for the ultimate value in DIY pool care. Apply tablets to feeders, floaters or the skimmer basket, adding 1 tablet for every 10,000 Gal. of pool water. Sun protected for longer chlorine life, HTH 3 in. tablets dissolve slowly and last up to 1-week. They're great for all pool types including vinyl-lined pools and salt water systems.