GH pH 4.01 Calibration Solution Quart
$13.95
{{option.name}}:
{{selected_options[option.position]}}
{{value_obj.value}}
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.
Show More
Show Less