BlueLab Calibration Solution - 7.0 pH Size:500 ml Use a non-ionic wetting agent

Use a non-ionic wetting agent for better penetration

Why Choose Athena Blended Grow B

8g 2-Way Humidity Control Packs in a 500 Count Case

140-series cloner (1-5/8 inch neoprene inserts) + 1 x 140 model's dome

and 69% runs wetter and suits humidors instead

BlueLab Calibration Solution - 7.0 pH Size:500 ml Use a non-ionic wetting agentThe Bluelab Calibration Solutions are a very necessary part of a growers toolbox. These solutions are manufactured specific to the calibration process and referenced to high laboratory standards by Bluelab. They are required for the calibration of pH meters, pH monitors and controllers. Regular cleaning and calibrating of pH measuring equipment ensures accurate readings. Bluelab's EC CF equipment does not need calibrating, as they are all factory