Vitalink Essentials Calibration Buffer PH7 Solution 250ml Control Hydroponics
Essentials Calibration Buffer PH7 Solution 250ml Control Hydroponics
Use VitaLink ESSENTIALS Buffer solution to calibrate pH meters. This pH 4 Buffer solution gives an accurate representation of the pH scale at pH4 to measure against.
Use VitaLink ESSENTIALS Buffer 4 for a 2 point calibration scale.
This will give an accurate range of measurement that hydroponic nutrients work within.
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