Bluelab calibration fluid pH 4.0 500 ml

A pH calibration solution is a must in every grower's toolbox. Bluelab pH 4.0 Calibration Liquid 500 ml is a high-quality solution for calibrating pH probes.

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