Micro Essential 153 Hydrion Double Roll 6.0 to 11.0 Wide Range pH Paper Dispenser. This Hydrion pH Paper provides excellent color separation in the pH range of 6.0-11.0. Double roll dispenser consisting of two rolls of 6.0-11.0 pH paper.
The color chart has pH matches at [6.0][7.0][8.0][9.0][10.0][11.0]
Each roll provides for approximately 100 tests.