| Hanna (HI7007-M) Ph 7.01 Buffer Caliberation Solution; 230 ML |
 HI7007M is a premium quality pH 7.01 calibration solution. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna�s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Price: 18.42 |