Want to know what the pH of your water is? With pH Reagent Drops, testing pH is now easier than ever. Simply put a few drops of the red pH Reagent Drops into the water you are testing and let it sit for a few seconds. Then using the color guide, match the color to the pH level. Being able to understand the pH level of your water will not only ensure the quality of your water, but also grant you the ability to correctly identify change if it is needed. When it comes to elevating your health, pH Reagent Drops are there to help you know what changes you need to make.