Active Air-Timer nutrient-combo - Can shut off another

- Can shut off another equipment while CO2 enrichment is ON

• 100% virgin high quality material

Choose this ballast for its versatile 120V/240V capability (120V cord included

Bug & pathogen free

Active Air-Timer nutrient-combo - Can shut off anotherDeliver 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.