Blue Lab PH 7 Calibration Solution

Home Grown Kiwi LTD

  • $15.99
  • Save $2

Only 1 left!

  • Digital pH meters require regular calibration.

  • 250ML
  • You will need both a pH 4 solution and a pH 7 solution to complete calibration.

    Contains Potassium Hydrogen Phthalate.


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