Grow Technology Calibration Buffer PH 7 Solution 300ml Control Hydroponics
Grow Technology Calibration Buffer PH 7 Solution 300ml Control Hydroponics
Solutions of a known and fixed pH.
These are used to calibrate pH meters.
This should be done on a regular basis to ensure ongoing accuracy from the meter.
This is a 300ml bottle of PH4 solution.
Available buffer solutions: pH 4 and pH 7
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