Hydrion Jumbo pH Paper 0-13 with with Dispenser and Color Chart
Description Jumbo roll for easy to read color charts. Dimensions: 50 ft. x 0.5 in. (15.2m x 1.27cm) pH 0.0-13.0. The container holds (1) 15 ft. roll of paper, giving you plenty of use out of a single roll. It provides for approximately 200 tests. (By microessential lab)