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GH pH Test Indicator 8 oz

$9.95
 
Shipping Weight: 1 lbs
   
Manufactured by: General Hydroponics
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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. This is the larger refill bottle.
 
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