4 oz. Calibration Solution Kit.
One (1) 4 oz. bottle pH 4 Calibration Solution.
One (1) 4 oz. bottle pH 7 Calibration Solution.
One (1) 4 oz. bottle 1382PPM Calibration Solution.
For use with the 24-7 Nutrient Monitor.
This item is sold individually. The case size is listed for your convenience for instances where you wish to order in case quantities.
— Ships from Portland, Oregon USA.
For more information, please visit the manufacturer Control Wizard's website.