General Hydroponics pH Calibration 7.0 Solution, 8 oz
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This solution is all your customers need for calibration of their pH meter. They simply dip the probe in a small amount of the balanced solution, adjust the meter to read 7.0, and they're ready to go.
  • Item #: GPCSS508

General Hydroponics pH Calibration 7.0 Solution, 8 oz

Price: $7.50
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