Hydrion Double Roll pH Wide Range Papers have a clear color match at each full pH unit:[1.0][2.0][3.0][4.0][5.0][6.0][7.0][8.0][9.0][10.0][11.0][12.0].

Each carton contains 10 dispensers, each consisting of two(2) 15-foot rolls of test paper and matching color charts. Provides for approximately 2000 tests.

 

Simply tear off a small strip of pH paper, dip into the test solution, then instantly compare the resulting color with the matching pH color chart.

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