General Hydroponics pH Test Indicator 8 oz (GH1516)Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution.
| ||Manufacturer's Product Information || |
|MSRP each $||10.76|
|Dimensions||1.7 x 6.2 x 1.7|
Price: $7.43 / each
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