Wall Mount Duct Shutter 4 - White Steel 4" Wall Mount Duct Shutter food-&-water-storage always keeping the lights working

always keeping the lights working in the best condition

Big Boy™ extra high capacity de-chlorinator and sediment filter

All materials are safe for dry food and herb storage (but not long term home canning—please do not use these for canning)

and with their 2000° Kelvin color temperature they consistently provide intense light in the correct spectral range for vigorous flowering growth and can even be used

• Drip-Irrigation

Wall Mount Duct Shutter 4 - White Steel 4" Wall Mount Duct Shutter food-&-water-storage always keeping the lights workingA 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