General Hydroponics 4.0 Reference Solution 8 oz

General Hydroponics 4.0 Reference Solution 8 oz
A few minutes and a small amount of this balanced pH Calibration Solution 4.01 are all growers need to adjust their pH meter and secure accurate nutrient solution readings. Available in an eight-ounce bottle.
10%
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SKU HH00357
Weight 2.00 lbs
 
MRSP: $7.50
Our price: $6.75
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