Bluelab PH 4.0 Calibration Solution

A pH calibration solution is a must in the toolbox of every grower. Bluelab pH 4.0 Calibration Solution 250 ml is a high-quality solution for calibrating pH probes.

The Bluelab calibration solutions are essential for the use of Bluelab pH meters. These solutions have been specially developed for Bluelab products with reference to high laboratory standards. All to ensure that your Bluelab products last longer and continue to achieve accurate measurements.