Crucial General Hydroponic Calibration Highest Quality Reference Solutions, Feature General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale), General Hydroponics technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used.
Crucial General Hydroponic Calibration Highest Quality Reference Solutions
GH Calibration Solutions pH7.01 Volume 32 oz
Package Include 1 Pc pH7.01 (32 oz Ounce-Quart) GH Calibration Solution
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