Fitment: The hooded wall vent cover is used for air exhaust applications; The diameter of outside dryer vent pipe is 4 inch connecting to dryer exhaust duct hoses; The length of dryer wall vent pipe is 8-1/4 inch and long enough for wall mounted installation and easily connect to solid metal pipe or flexible ducting hose; Please measure duct diameter to ensure the size is right before purchasing dryer wall vent cap Reliable Hooded Exhaust Vent Cap: The screen mesh of dryer vent cover outside is openable, easy to clean and keep rodents birds insects squirrels out; Spring loaded backdraft damper of the outdoor dryer vent cover allow exhaust when open and prevent outside cold air backflow when closed to leave a puddle of water in dryer; The foam gasket reduce noise and provide quiet operation Durable Galvanized Steel Wall Exhaust Vent Cover: Exterior wall vent cover constructed from high-quality 304 stainless steel featuring rust-proof, anti-corrosion and withstand extreme condition Easy to Install: No need to drill holes; The dryer exhaust vent cap comes with 4 pre-drilled holes on the flange and 6 screws to easily be attached by using screw in each corner; dryer exhaust vent comes with a aluminum foil tape used to fix and seal the dryer vent duct pipe connection for max ventilation efficiency Wide Application: Wide mouth of low profile dryer vent cover outside is designed for optimum exhausting flow and idesl for laundry room dryer wall vent, bathroom exhaust fan vent, basement shop wall exhaust, Garage exhaust, generator shed wall vent, air conditioner AC wall vent, HVAC exhaust systems exhaust vent, office room exhaust, kitchen range hood extractor wall vent, kitchen stove hood wall vent, outdoor air ventilation application,ect JYINCPED Galvanized Steel Hooded Wall Vent with Screen and Damper for Air Exhaust and Prevent Insect Out
Wall Vent Pipe Diameter: 4 inch ; Dryer Vent Pipe length: 8-1/4 inch
Long enough for wall mounted installation and easily through the wall connect to solid metal pipe or flexible ducting hose

Spring loaded backdraft damper with Foam Gasket
The damper open to allow the air exhaust, even at low fan speeds
The damper stay closed when not work to prevent outside air backflow or insects from coming inside the home
The non-return flap damper prevent outside cold air to flow into your house and condense a puddle of water in your dryer
Foam gasket on the damper reduce noise and provide quiet operation even on windy days

Steel Mesh Screen
Easy to open and clean the lint to avoid lint buildup
Keeps rodents, birds, insects, mouses and squirrels out
Rivets secure the mesh screen to ensure no-gap connection to the vent cap and not pop it out of the way

Galvanized Steel hooded Vent Cap
Outisde dryer vent cover outside constructed from high-quality 304 stainless steel featuring rust-proof, anti-corrosion and withstand extreme condition

Easy to Install
No need to drill holes
Comes with 4 pre-drilled holes on the flange and 6 screws to easily be attached by using screw in each corner
Comes with a aluminum foil tape used to fix and seal the vent pipe connection for max ventilation efficiency and prevent water leakage & air leakage