Regulator for Hydrofarm CO2 System CO2 is an odorless, invisible, and non-flammable gas. It is also safe for humans in the maximum concentrations recommended for plant growth. The average level of CO2 in the atmosphere is about 300 PPM (parts per million). If the level decreases down below... More Details
Price: $79.95

Hydrofarm CO2 (.2-2 cubic feet per hour) with Timer A CO2 system releases gas from a carbon dioxide bottle (not included). Plants use CO2 during photosynthesis. Increasing the carbon dioxide level to 1500 parts per million has shown to increase plant growth up to 30%. The output is adjustable from 0 to 2 c... More Details
Price: $139.95

Hydrofarm CO2 (1-20 cubic feet per hour) with Timer CO2 is an odorless, invisible, and non-flammable gas. It is also safe for humans in the maximum concentrations recommended for plant growth. The average level of CO2 in the atmosphere is about 300 PPM (parts per million). If the level decreases down below... More Details
Price: $144.95

CO2 tube 1/4" with holes - 100 foot Co2 System replacement part. ... More Details
Price: $29.95

Tubing / Co2 / 20' drilled ... More Details
Price: $12.95