Atlas Scientific pH Calibration Solution 4.00 & 7.00 125ml - 4oz (Pack of 2)

Product Description

Includes One 125ml (4oz) pH 4.00 and One 125ml (4oz) pH 7.00

Works with any pH Probe

±0.02 pH at 25°C

Standardized against NIST-Certified References

2 Year Shelf Life

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