JYINCPED Galvanized Steel Hooded Wall Vent with Screen and Damper, Wall Mount Extractor Vent Used for Ventilation and Air Exhaust Applications Size & Multiple Selection Pipe Length: 8-1/4 Inch Pipe Diameter: 6 Inch, 8 Inch, 10 Inch, 12 Inch Various Colors: white, black, stainless steel Please measure vent duct diameter to ensure the size is right before purchasing Design & Function Wall mount extractor vent is used for outdoor air exhaust applications Hinged backdraft damper to prevent air backflow when air outlet closed and easily open to allow air flow when working Mesh screen and damper to prevent snakes, foreign objects, cold air and rain from entering home Angled hood with wide mouth is designed to balance low profile for optimum air and exhaust flow Sound insulation cotton on the baffle to reduce noise and provide quiet operation Wider flange ring for a stable installation and enhance security and durability Rounded corners to prevent scratches and ensure safety High Quality Constructed from high-quality 28 gauge galvanized steel Ensuring durability, rust resistance, anti-corrosion and withstand extreme condition Easy to Install Designed with pre-drilled installation holes on the flange for simple installation Comes with installation screws for easy outside wall mounting and secured in place Comes with a aluminum foil tape used to fix and seal the vent duct pipe connection for max ventilation efficiency Wide Application Fit for most home wall exhaust vent improvement projects Ideal for kitchen range hood wall vent, external extractor wall vent, kitchen stove hood wall vent, dryer vent, bathroom exhaust fan vent, basement shop wall exhaust, garage exhaust, laundry exhaust vent,shed wall vent, air conditioner AC wall vent, office exhaust ventilation application