Hanna pH7 Buffer Solution 500ml 4971 Ideal for users that do

Ideal for users that do not calibrate frequently

When needed

5"L X 6"W X 3"H

Fine saddle tension adjustments for tight trimming

Hanna pH7 Buffer Solution 500ml 4971 Ideal for users that doHanna HI7007L pH7 Buffer Solution HI7007L 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. Hannas line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle. Color coded label for easy pH