Keep your pool crystal clear and sanitized with Pyrock Chemical Pools Tri-Chlor Tablets. These slow-dissolving 3" chlorine tablets are designed to provide consistent, long-lasting sanitation, helping maintain balanced chlorine levels while preventing algae growth and bacteria buildup. Ideal for use in floaters, feeders, or automatic chlorinators, these tablets make pool maintenance simple and reliable. Each tablet is formulated with stabilized trichloro-s-triazinetrione (Tri-Chlor), which contains built-in UV protection to help prevent chlorine loss from sunlight. The slow-dissolving design ensures steady chlorine distribution, reducing the need for frequent dosing and helping keep your water clean, clear, and safe for swimming. The 50 lb pail is perfect for pool owners who want season-long supply and dependable performance at wholesale-style value.