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General Hydroponics pH Test Kit

General Hydroponics pH Test Kit

General Hydroponics pH Test Kit

  • 1 oz. pH test indicator
  • Test tube
  • Instructions
    • Fill the test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the resulting color in the test vial
    • Red means the pH is too low
    • Blue means the pH is too high (basic or alkaline)
    • yellow to yellow-green is ideal



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