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This pHydrion Insta-Check roll of paper is 1/2 inch wide and 600 inches long (50ft). This is much more pH paper than the standard roll, which is 1/4 inch wide and 180 inches long (15ft).
Hydrion Jumbo Size pH Papers are easier to read with larger color charts. The larger width of the paper enables clearer and quicker color matching. Hydrion Insta-Chek Wide Range pH Paper, the ultimate in wide range, general purpose pH papers has a distinct color match at each full pH unit.
Store unused test paper in the included plastic case in a dark, dry location for maximum shelf life. Provides approximately 300 tests.