"pH Calibration Buffers"

Environmental Express Oakton pH buffers are Certified Reference Materials, making them one of the most accurate solutions available.

Always read the correct pH

Set includes calibrated and pre-weighed amounts of buffer powders at three pH values (pH 4.0, 7.0, and 10.0) for testing or calibrating your pH meter.

No Unwieldy Bottles to Carry or Clean