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pH 7 Calibration Solution  500mL

pH 7 Calibration Solution 500mL

Regular price Price: $6.20 CAD Sale

CannaMax Calibration Solution pH7 is a very necessary part of a growers toolbox. Just fill a small clean container with only enough solution to cover the probe end. Then adjust your meter. Last, rinse probe with clean water and throw out the used calibration solution.