HTH 0.375 lbs. 3 in. Chlorinating Tablets Advanced

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" tablets dissolve slowly and last up to one week. They're great for all pool types including vinyl-lined pools and salt water systems.