General Hydroponics PRO pH Down, 55 Gallon Pre-Roll Machines & Supplies The DimLux CO2 Sensor provides

The DimLux CO2 Sensor provides accurate information on the CO2 content of the atmosphere in your grow area

NOTE: Please give us a call if you would like to order more than the Minimum Quantity amounts listed above

Compatibility list coming soon

Always adjust fertilization rates to plant response

General Hydroponics PRO pH Down, 55 Gallon Pre-Roll Machines & Supplies The DimLux CO2 Sensor providesEffectively Decrease the pH of Nutrient Solutions or Irrigation Water. Use Pro pH Down to lower the pH value of your irrigation water or nutrient solution. Pro pH Down will NOT contribute phosphorus, nitrogen or sulfate like most pH Down products. When youre growing professionally, only Pro pH adjusters will do. At nearly 3x the concentration of our retail adjusters, Pro pH Up and Down deliver more power per pint to make balancing nutrient ratios in