4 Inch Hooded Wall Vent with Screen, Damper, 8-1/4" Length Duct, 14 Gauge Steel Vent Covers for Wall, Wall Vent Cover for Residential Housing and Industrial Facilities Air Exhaust, Black Wolline Up to 48 inches

Up to 48 inches

and supports 90-degree right angle or 180-degree plane installation

and metal behind drywall

5 inches (1

If you like the loose effect

4 Inch Hooded Wall Vent with Screen, Damper, 8-1/4" Length Duct, 14 Gauge Steel Vent Covers for Wall, Wall Vent Cover for Residential Housing and Industrial Facilities Air Exhaust, Black Wolline Up to 48 inchesDurable Vents for Home Wall: Constructed with 14 gauge heavy duty steel and powder coated finish, air vent covers wall feature dual rust proof and corrosion resistant protection; Resistant to heavy rain, intense sunlight, salt spray and corrosion, they withstand extreme weather conditions to create a long lasting protective barrier for building ventilation systems Thoughtful Design: Its scientifically arched structure design and wide opening design