General Hydroponics pH Calibration 4.01 Solution, 8 oz

General Hydroponics pH Calibration 4.01 Solution, 8 oz[ GPCSF508 ]

$4.57 $7.50
A few minutes and a small amount of this balanced pH Calibration Solution 4.01 are all growers need to adjust their pH meter and secure accurate nutrient solution readings. Available in an eight-ounce bottle.


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