Pentair R151226 79 Cyanuric Acid Test Kit Cyanuric acid test kits Determine parts per million of Cyanuric Acid Test vial designed for positive readout, 8-ounces reagent, instructions in Styrene box with clear top Includes 1 kit per pack Measures 8-1/2-inch length by 13-inch height by 8-3/4-inch width