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

The rack unit comes standard with a port for nitrogen assistance

a fast and complete absorption of important nutrients is stimulated

such as servers and networking

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