GENESIS PH 4.01 BUFFER CALIBRATION SOLUTION     1 GAL

Used to calibrate pH meters to assure they are accurate and working properly. You should check your pH meter frequently because the properties of the meter's membrane is constantly changing from normal use and aging. Hydroponic and soil gardens differ in the fact they both need different pH ranges for nutrients to be made available for plant absorption. Maintain a pH between 5.0 and 6.5 for hydroponic gardens and 6.0 to 7.0 for soil applications.

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