LARGE 50 ml BOTTLE. Comes with Separate pH reagent Color Chart. Great way to test the pH and Alkalinity of any liquid or water. Just add 3 drops on the pH Reagent to about an ounce of water and compare to the color chart included. Simple and easy to use. WIDE Range is from 4.0 to 10.0 Beaker is not included. Just add 3 drops to about 1 1/2 ounces of water. Reliable and ease of use compared to expensive electronic meters. Can also use to test the Alkalinity of you drinking water, water ionizer, etc.
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