Hydrofarm CO2 (2 - 20 cfh) COSYS20 (8/cs) Hydrofarm CO2 (2 - 20 cfh) COSYS20 (8/cs) (eco-4544)Hydrofarm CO2 (1-20 cubic feet per hour) with Timer
Active AirTM CO2 System
Active Air climate control products are available for a variety of indoor growing applications. Whether fans, CO2 systems, filters, or any other product in the line, they have all been custom engineered for hobby and commercial growers to provide... This item is sold individually. — Ships from Seattle, Washington USA....more info.