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  • GH 1500 PPM Calibration Solution 8 oz
General Hydroponics
3571

GH 1500 PPM Calibration Solution 8 oz

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.
  • $13.17
  • $13.17
  • - 0%