YINMIK pH Calibration Solution Kit(4.00,7.00&10.01) with Free Gift pH Protective Solution,3 Bottles 50ml pH Calibration Buffer Solution and 2 bottels 10ml pH Probe Solution for pH Meters

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  • Double Sealed 2-year expiration from manufacture for an unopened bottle
  • Buy One Get More Order pH Calibration will get 210 ml KCL probe storage solution , It can be used for various pH Meters electrode protection , so that your pH testers have a longer service life!
  • Easy Identification Color Coded for each pH Calibration Buffer Solution

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