Plastic UPGRADED SOFFIT VENTS COVER 4 INCH--Our wall exterior vent covers comes with the very sturdy fabric screen which is very important for a dryer vent cap because it is function as Effective Stops Birds Nesting,Prevent Rats,outside lint filter,Diameter of the exhaust vent cover outdoor mounting is about 4 inches, total unit size of the vent cover is almost 6 inches x 6 inches; the "4 Inches" refers to the diameter of vent cover mounting/opening; Therefore, please check and confirm size of vent duct you have or hole you drill before ordering for your use. PREMIUM QUALITY-- dryer vent cover outside 4 inch is made out of sturdy premium quality plastic material, adding the inhibitors for long service time, and preventing it from being age-faded, damaged and cracked, due to the long time exposure to sunlight; attached with strong fabric grill screen, anti-rusty sturdy. The inside screen also make the out area clean and prevent small animals getting into the pipe. EASY TO INSTALL--If you already have the hole for the cap, then the install will be super easy because the most difficult part of the job is cutting the hole for the end of the pipe where the cap will go. However, if you dont have hole for cap, no worry about it. We have step by step instruction bellow. PRODUCT DETAILS--The package contains 1X4 inches exhaust vent cover outdoor, with 1 x fabric screen and 4 X screws. louvered vent cap protects the vent from rain and blowing debris, and keeps out insects and small animals. Moreover, the cap restricts lint build-up in the area, making cleaning easier. Dryer Exhaust Air Vent Cover fit onto standard 4-inch-diameter dryer vent pipes. NO WORRY TO BUY- Your satisfaction is our top priority. Thus, we provide a 365-DAYS warranty and a 90-DAYS return exchange policy. If you have any questions during shopping about our 4 inch soffit exhaust vent cover, feel free to contact us, and we will try our best to solve the problems.Important Installation Tips:Disconnect all the power before starting any repair/replace work! soffit vents 4 inch 4 louvered vent cover exhaust fan vent cover exterior 4 inch vent cover outside 4 inch square soffit vent exterior vent covers for house exterior wall vent cover 4 louvered dryer vent cover 4 inch bathroom exhaust fan soffit vent kit exhaust fan vent cover exterior 4 inch outside vent covers for house