Hydrofarm CO2 (.2-2 cu ft per hour) with Timer Carbon Filters use Dry KoolBloom® for an

use Dry KoolBloom® for an additional bloom boost and to facilitate ripening

Optional port plugs are available for unused ports

so you can get going… And keep growing with the ultimate handy team

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes

amino-chelated calcium

Hydrofarm CO2 (.2-2 cu ft per hour) with Timer Carbon Filters use Dry KoolBloom® for anProduct Details 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