1500 PPM Reference Solution, 8 Oz

1500 PPM Reference Solution, 8 Oz
Reference solution which allows growers to calibrate many popular brands of PPM meters (NaCl scale or the 442 scale). Each batch is quality checked to ensure that the solutions are precisely calibrated and yield reliable readings each time they are used.
  • calibrate many popular brands of PPM meters
  • 8 Ozs
  • $29.04

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