The Taylor K-1443 Hydrogen Peroxide Test is another easy-to-use kit from Taylor, giving you the ability to accurately measure all the critical elements of water chemistry, including potassium iodide, sulfuric acid, molybdate, and thiosulfate. This kit includes a 2 ounce bottle of each of these testing reagents as well as the graduated cylinder with a built-in measurement chart. Simply fill the cylinder with pool water and add the correct reagents according to the supplied directions, and you will have highly accurate results in seconds. Best of all, the Taylor K-1443 Hydrogen Peroxide Test is made by Taylor, an innovator in water chemistry testing for 80 years, allowing you to buy with confidence.