PH 4.01 CALIBRATION SOLUTION 1 QUART

CA$29.95
Reference: 6068
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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 technicianscheck each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used.

6068

Specific References