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Allow your plants to drink up this formula designed to provide all the macro
Consistent performance
durability
or circulation is necessary
Bluelab 4.0 pH Calibration Solution 250ml (Case Of 6) HGC736746 Allow your plants to drinkCalibration and conductivity standard solutions a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity Temperature probe. Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and
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