$284.25

Buffer, Precision Reference Standard, pH 4.000 0.002 at 25C (Color Coded Red) - BUFFER HIGH ACCURACY PH4 CALIB
[RC1502-16-EA]

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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.
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