Active Air-Timer Options:Hydrofarm CO2 (.2-2 cu ft per hour) with Timer Note: Testimonials above are placeholders

Note: Testimonials above are placeholders — replace with verified customer reviews before publishing

Case Pallet = 180

Use our sturdy clear vinyl tubing

or as decorative top dressing for container plants

Active Air-Timer Options:Hydrofarm CO2 (.2-2 cu ft per hour) with Timer Note: Testimonials above are placeholdersDeliver 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.