Bluelab - pH Calibration Solution Size:pH 7.0 - 500ml allowing your pH levels to

allowing your pH levels to fluctuate further than usual without leading to deficiencies

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Bluelab - pH Calibration Solution Size:pH 7.0 - 500ml allowing your pH levels toBluelab pH Calibration Solution Keeping your pH meter calibrated is essential for taking accurate readings and keeping your nutrient solution within the correct pH range. Bluelab's pH Calibration Solution allows you to accurately calibrate your pH meter. Check out our complete water conditioning toolkits, which come with an EC meter, pH meter, pH up & down, pH buffer, chlorine neutraliser, jug and syringes click here to learn. How pH Calibration