Customers can connect the Carbon Dioxide Regulator to a bottled CO₂ system to maintain optimum CO₂ levels in their indoor garden. The Carbon Dioxide Regulator features an easy to adjust CO₂ flow meter, pre-set regulator and solenoid valve. Included tubing allows even CO₂ dispersion throughout the grow area when used in conjunction with an oscillating fan. Use the Carbon Dioxide Regulator with a digital CO₂ controller or a timer for best results. Adjustable flow rate from .5 to 15 cubic feet per hour.