General Hydroponics
GH pH 4.01 Calibration Solution 8 oz (12/Cs)
GH pH 4.01 Calibration Solution 8 oz (12/Cs)
Regular price
$ 8.13 USD
Regular price
Sale price
$ 8.13 USD
Unit price
/
per
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.