Active Air CO2 System with Timer, 0.2-2 cu ft per hour


High quality materials

SKU: COSYS Category:

Deliver growth-boosting CO2 with our user-friendly, easy to operate system. With its programmable timer, it will automatically maintain ideal CO2 levels for optimum growth. For small to medium size areas, select the COSYS; for larger than 10′ x 10′ areas, select the COSYS20.

To use Hydrofarm’s CO2 Flow Rate Calculator, click HERE


NOTE: Current COSYS & COSYS20 now come equipped with a black rubber O-ring that has replaced the white plastic washer. 

Weight4.3 lbs
Dimensions8.8 × 9.8 × 6.9 in