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This Hydrion pH Paper provides excellent color separation in both the acid range (below pH 7) and alkali range (above pH 7). Offers an easy-to-read, single color match at every .2 to .3 interval from pH 5.5 – 8.0. Each roll provides approximately 100 tests. Tests are most accurate when used to test nutrient solutions.
|Dimensions||2.75 × 2.5 × .75 in|