Apera AI1108 pH Calibration Buffer Kit pH 4.00 & 7.00, and KCl storage solution

(Each), plus 4oz. 3M KCl Soaking Storage Solution for pH/ORP Electrodes. Reported values are accurate to +/- 0.01 pH at 25°C and are traceable to NIST Standard Reference Materials (SRMs). All pH buffers have a 2-year expiration from manufacture for an unopened bottle.

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