PH4 & 7 Calibration Solutions (Twin Pack)
Includes approx 110ml each of 4.00 & 7.01 buffers. Packaged from bulk
to get you the best pricing. For testing, pour buffers into a small glass.
Includes approx 110ml each of 4.00 and 7.01 buffers. We package these solutions from bulk quantities to get you the best pricing. For testing, pour buffers into a small glass. You do not want to stick the probe of the pH meter into the buffer jars directly because you will eventually sacrifice the accuracy of your buffers.