4 oz. Calibration Solution Kit.ContainsOne (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.
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This item is sold individually. The case size is listed for your convenience for instances where you wish to order in case quantities.
— Ships via UPS from Portland, Oregon USA