Backdraft Damper allows contaminated air and odors to move out and prevent it from getting back inside. This helps you to maintain a perfect temperature and air quality inside your grow room.
It comes with rubber gaskets installed already on the outside that provides an airtight seal. The device is also easy to install into the duct system. Backdraft Damper is made with galvanized steel to ensure long life.
SKU/ Model: DL-403004
Duct Size: 4 inches
Material: Galvanized steel
Dimensions: 4 (L) * 4 (W) * 5 (H)