GH pH Test Indicator 8oz


The General Hydroponics pH Test Indicator can help you maintain an ideal pH level (which is between 5.5 and 6.5). This can be achieved by monitoring your pH using the super concentrated drops found with the test indicator. Based on the test results, pH Up or pH down (available separately) can be added to adjust the pH as needed. The General Hydroponics pH Test Indicator works across a wide pH spectrum (pH 4.0 – 8.5). Kit includes sampling tube, reagent, and color comparison for easy and reliable testing.

8 in stock

SKU: 1282 Category:



1. Fill test vial ½ full with solution to be tested.

2. Add 3 – 5 drops of pH test indicator to vial.

3. Tap the side of the test vial to mix contents.

4. Observe the color in the test vial.

Add pH DOWN (Acid) to lower pH.

Add pH UP (Base) to raise pH.*

The best pH is between 5.5 and 6.5


General Hydroponics

Additional information

Weight 0.34926584 lbs


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