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.
GH pH 7.01 Calibration Solution Quart
$17.82
Additional information
| Weight | 2.3 lbs |
|---|---|
| Dimensions | 3.25 × 3.25 × 8.75 in |
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