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Bluelab pH 4.0 Calibration Solution
pH 4.0 calibration solutions... a must in every grower's toolbox.
High quality solutions formulated for calibrating pH probes.
Bluelab® calibration solutions are essential for use with all Bluelab® products.
Bluelab® Solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab® products last longer and maintain accuracy.
