The pH test strips are the same paper as the Hydrion AB pH Test Paper, but packaged in convenient strips. Each vial contains 100 strips of one type of paper.
Same paper as the Hydrion AB pH Test Paper, but packaged in convenient strips. Each vial contains 100 strips of one type of paper. Type A covers even pH intervals (2, 4, 6, 8, 10); Type B covers odd pH intervals (1, 3, 5, 7, 9, 11).
1-800-452-1261
