General Hydroponics pH Control Kit

$24.93 (as of November 12, 2018, 4:16 pm) & FREE Shipping. Details $14.31

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Designed to work superbly in hydroponic environments, both soil-less mixtures and soil grown plants
Includes pH Test Indicator tube:fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the vial.