The Palintest Cyanuric Acid Photometer Tablets deliver fast, accurate testing of cyanuric acid (stabiliser) levels in pools and spas. Accurate cyanuric acid control helps to stabilise pH levels, prevent corrosion, and maintain overall water balance. Each pack includes 250 foil-sealed tablets for freshness and reliability, making routine water checks simple and dependable. Perfect for public pools, spas, and commercial facilities.