Hydrofarm CO2 System (.2-2 cubic feet per hour) with Timer


1 in stock

Sold By: : Groundworks 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.

Additional information

Weight 4 lbs
Dimensions 8.8 × 9.8 × 6.9 in


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