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Convenient 3-Pack of color-coded buffer solutions. They are recommended for automatic calibration and assure accuracy （pH is ±0.02 pH units）.

• 33% Cost Reduction over single bottle purchase
  Concentration:4.01 pH to 10.01 pH
  Description :One container each of pH standardization buffer solutions at pH 4.01 （red）, 7.00 （yellow）, and 10.01 （blue）.
  Platform :S
  Volume:4 L bottles