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Hydroponic Essentials pH Test Kit
(Wide Spectrum) Measures 4-8.5 pH
Essentials pH test kit is good for 150 tests. At the rate of 3 tests per week it will last one year, making it excellent value for money. Covers a pH range of 4-8.5 measuring in 0.5 increments.
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Item Number: 136972
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Usually ships in 3 to 5 days.
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$4.45
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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
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Out of Stock
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$4.45
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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 vial sample of the solution you want to test and then squeeze three drops of the indicator... More Details
Item Number: 211515
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Usually ships in 24 hours
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$4.69
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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
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Usually ships in 24 hours
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$6.68
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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
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Usually ships in 24 hours
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$10.68
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