Wall Mount Duct Shutter 4 - White Steel 4" Wall Mount Duct Shutter commercial-greenhouse-fixtures Ceramic micromole output within the

Ceramic micromole output within the PAR (Photosynthetically Active Radiation) spectral range

proven to stop pathogens in its tracks

and a 4-oz bottle of Trim Fast Blade Lubricant

The rack unit comes standard with a port for nitrogen assistance

Slightly higher PAR for better flower density

Wall Mount Duct Shutter 4 - White Steel 4" Wall Mount Duct Shutter commercial-greenhouse-fixtures Ceramic micromole output within theA wall mounted shutter designed for use with grow rooms, dryers, attics, and other HVAC applications. Features built in rubber stoppers that dampen slamming vent blades and ensure complete blockage. Non return thin louvers that close when fan is not in use to prevent outside air and debris from entering. Durable, lightweight steel body that is rust resistant can withstand most weather conditions. Duct Opening Diameter: 4 inches Front Plate Size: 6. 69