Clorox Pool & Spa Xtra Blue 3-inch long-lasting chlorinating tablets are designed to kill all types of pool algae and bacteria, keeping water clean, clear, and free of visible algae. This 40-pound bucket contains approximately 80 individually wrapped 3-inch tablets, providing a value size for residential pool maintenance.

The 6-in-1 formula offers comprehensive pool care with multiple protective functions. It reduces scale formation, prevents corrosion of pool equipment, and provides longer-lasting sunlight protection to help chlorine resist UV degradation. The slow-dissolving tablets are formulated with trichlor (trichloroisocyanuric acid) containing 94.05% trichlor and 84.65% available chlorine for sustained sanitization.

These tablets are suitable for use in pools and spas. They work by maintaining consistent chlorine levels to sanitize water, with the slow-dissolving design providing extended protection between treatments. The individually wrapped tablets help preserve freshness and make dosing convenient. For typical pool maintenance, tablets are placed in a floating dispenser or automatic chlorinator to gradually dissolve and distribute chlorine throughout the water.