GH 1500 PPM Reference Solution 8 oz
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many..
GH pH 4.01 Calibration Solution 8 oz
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many..
GH pH 4.01 Calibration Solution Quart
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many..
GH pH 7.01 Calibration Solution 8 oz
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many..
GH pH 7.01 Calibration Solution Quart
General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many..
GH pH Control Kit
General Hydroponics pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial...
GH pH Down Liquid  Quart
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. This powde..
GH pH Down Liquid Gallon
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. This powde..
GH pH Test Kit 1 oz
General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient..
GH pH Up Dry 2.2 lb
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at ..
GH pH Up Liquid  Quart
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at ..
GH pH Up Liquid Gallon
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at ..
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