Exceptional General Hydroponic 1500 PPM Calibration Reference Solutions, Feature GH 1500 PPM Reference Solution 8oz, 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.
Exceptional General Hydroponic 1500 PPM Calibration Reference Solutions
GH Calibration Solutions Volume 8 oz
Package Include 1 Pc GH 1500ppm Calibration Solution
100% Brand New and Satisfaction Guaranteed