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General Hydroponics

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1500 PPM Calibration Solution 1 qt
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use o..
$21.50
1500 PPM Reference Solution   8 oz
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate ma..
$8.20
pH 4.01 Calibration Solution 8 oz
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate ma..
$7.54
pH 4.01 Calibration Solution Quart
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate ma..
$21.50
pH 7.01 Calibration Solution 8 oz
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate ma..
$7.54
pH 7.01 Calibration Solution Quart
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate ma..
$21.50
pH Control Kit
Contains: 8 oz. pH UP, 8 oz. pH DOWN, 1 oz. indicator & vial ..
$17.20
pH Down Acid  8oz
To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced ..
$7.54
pH Down Dry 2.2 lb
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. This powd..
$10.76
pH Down Liquid  Quart
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. This powd..
$10.76
pH Down Liquid Gallon
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. This powd..
$26.90
pH Test Indicator 8 oz
Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the colora..
$10.76
pH Test Kit 1 oz
General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient..
$7.54
pH Up Base   8oz
To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced ..
$7.54
pH Up Dry   16lbs. Base
To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced gr..
$106.00