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Products > pH, EC and TDS > pH Test Kits

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Description Availability Price

Pro pH Test Kit

This handy kit is included with our larger garden systems. A simple measurement of nutrient solution will give pH accuracy within .5. Includes a color scale, test vial and indicator solution. ... More Details

Item Number: 133825

Pro pH Test Kit
Usually ships in 24 hours $4.95

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General Hydroponics pH Test Kit

The pH test kit from General Hydroponics has a range of pH 4 to pH 8.5 and lasts for about 200 tests. 1 fluid ounce of indicator solution included. Just take a half vile sample of the solution you want to test and then squeeze three drops of the indicator... More Details

Item Number: 211515

General Hydroponics pH Test Kit
Usually ships in 24 hours $5.95

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pH Test Indicator 8 Ounces

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. ... More Details

Item Number: 133852

pH Test Indicator 8 Ounces
Usually ships in 3 to 5 days. $8.95

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General Hydroponics pH Control Kit

Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (fill a test-tube halfway with nutr... More Details

Item Number: 131697

General Hydroponics pH Control Kit
Usually ships in 24 hours $13.95

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