Taylor K-1443 Hydrogen Peroxide TestThe 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