View 2 of 8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox

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View 1 of 8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBoxView 2 of 8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox