BlueLab Calibration Solution - 7.0 pH SIZE:250 ml Kelp Extract and Alfalfa Meal:

Kelp Extract and Alfalfa Meal: Ascophyllum nodosum and Medicago supply the amino acids and vitamins behind thicker stalk tissue and fuller aromatic development

70% recycled ABS with UV-resistant cap: Recycled core

Crafted for ease of use

Eye Protection

That matters far more at this length than it does on a 3x3

BlueLab Calibration Solution - 7.0 pH SIZE:250 ml Kelp Extract and Alfalfa Meal:The 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