ProGuard 3″ TriChlor Chlorinating Tablets – 50 lb Pail

90% available chlorine in a hard-pressed 3″ tablet for slow dissolving, convenient use. This trichloro product includes built-in chlorine stabilizer (cyanuric acid) to act as ‘sunblock’ against the UV rays of the sun. These 3″ tablets come in a heavy-duty plastic pail and are recommended for use in floating or erosion chemical feeders. Available today from Leisure Pool & Spa Supply in single 50 lb pails.