General Hydroponics pH Calibration 7.0 Solution, 8 oz

$7.99

The General Hydroponics 7.0 and 4.01 Calibration Solutions are all that’s needed for the calibration of pH meters. Simply dip the probe in a small amount of the balanced solution and adjust the meter according to instructions.

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Description

The General Hydroponics 7.0 and 4.01 Calibration Solutions are all that’s needed for the calibration of pH meters. Simply dip the probe in a small amount of the balanced solution and adjust the meter according to instructions.

STORE PICK UP ONLY

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