Active Air CO2 System (2-20 cubic feet per hour) with Timer

COSYS20
$114.95

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

4.4 lbs.
9.8L x 8.8W x 7.0H
8
128
3 Year

What are the benefits of using supplemental CO2 in my garden?

CO2 is essential for photosynthesis to occur. Under the influence of supplemental CO2, plant metabolism is increased resulting in higher productivity rates. Growth, yield, and environmental tolerance is enhanced if used properly in a greenhouse or indoor garden.

Why is the black solenoid on my CO2 regulator getting hot?

This is normal, the maximum operating temperature of this unit is 80C/176F. Do not touch the solenoid while the unit is operating.