Johnson - Model pH 1 - 11 -Universal Indicator Paper

Johnson Test Papers Universal Indicator Paper pH 1 - 11, pH paper- for use in laboratory, food service, education, Environmental / Safety, cosmetics, industrial,and water treatment Available as 10 books of 20 strips, 1 reel (5m x 7mm), 3 reel refill pack*,and 100 strips per pack.