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Active Air CO2 System with Timer

Size: 0.2 to 2 CuFt/Hour
Save up to $35.48 Save $33.77
Original price $129.77
Original price $129.77 - Original price $137.48
Original price $129.77
Current price $96.00
$96.00 - $102.00
Current price $96.00

** Online Only Price **

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.