Co2 Regulator – Dual is the best device to maintain optimal levels of CO2 for indoor plants in your grow space. It comes with a flow meter that you can easily adjust from 0.5 to 15 cubic feet/hour.
The device is also equipped with a solenoid valve and a pre-set regulator for precise output. You can attach a solenoid valve to the timer to turn off and on the CO2 supply. This will ensure uniform C02 distribution throughout your grow room.