Hydrion pH Paper in DispenserReusable dispensers hold two rolls of standard-size Hydrion pH papers 15 feet long x 0.21 inch wide (4.6 meters x 0.55 centimeter)plus matching color...
Hydrion pH Paper in Dispenser, 3.0 to 5.5pH range is 3.0 to 5.5Distinct color match at each full pH unitImmediate response with accurate, reproducible readingsKit consists of a 15-foot roll of test...