Active Air CO2 System with Timer, 1-20 cubic ft per hour ac-dehumidification-humidification By setting a "safe range"

By setting a "safe range" of temperature and humidity

Lightweight (62 lbs

the Silver Line Pruner offers a durable and customizable pruning experience

optimum air exchange and high cation exchange capacity (CEC) plus coarse perlite for amplified root zone aeration

Active Air CO2 System with Timer, 1-20 cubic ft per hour ac-dehumidification-humidification By setting a "safe range"Description Growth Boosting CO2 System: This easy to operate, user friendly system delivers growth enhancing CO2. Integrated with a programmable timer, it automatically maintains optimal CO2 levels for optimum growth. You can choose the COSYS for small to medium sized places. For areas bigger than 10' x 10', opt for the COSYS20. CO2 Flow Rate Calculator: Put Hydrofarm's convenient flow rate calculator to use. Click HERE to access this tool.