24x30x1 Pleated Air Filters MERV 7 Plus Carbon 3 Pack Water Heaters Chillers The iGS-221 can operate the

The iGS-221 can operate the intake and exhaust fans cyclically to replenish the garden's atmosphere in oxygen as it is needed for the plants and for safe CO2 combustion generator operation

Optimal Growth - 8-9 months

This controller is easy to use and versatile too

When you upgrade to the Kief Filter Screen

Probe: Detachable platinum electrodes

24x30x1 Pleated Air Filters MERV 7 Plus Carbon 3 Pack Water Heaters Chillers The iGS-221 can operate theNordic Pure 24x30x1 MERV 7 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material while