GH pH 4.01 Calibration Solution 8 oz (12/Cs)

GH pH 4.01 Calibration Solution 8 oz (12/Cs)[ 722015 ]

$4.56 $7.54

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.



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