BLUELAB - 4.0 PH REFERENCE SOLUTION 250ML

MSRP: $7.99
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SKU:
HD4CAL250
Weight:
0.80 LBS
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Calibration 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 calibr