The Lambro 4 In. white plastic exhaust wall hood vent with 11 In. pipe is for venting through the wall. This vent is used for clothes dryer exhaust, bath fan exhaust and other venting applications. The exhaust vent allows for maximum exhaust airflow when venting a clothes dryer. The built in damper prevents back drafts while the removable guard prevents critters from entering the home through the vent. The plastic vent has a UV additive to prevent premature fading due to the sun. Other models and colors available. Our eBay Store About Us--> Contact Us Add to Favorite Sellers--> Lambro 4 In. White Plastic Wall Exhaust Hood Vent 224WS Lambro 4 In. White Plastic Wall Exhaust Hood Vent The Lambro 4 In. white plastic exhaust wall hood vent with 11 In. pipe is for venting through the wall. This vent is used for clothes dryer exhaust, bath fan exhaust and other venting applications. The exhaust vent allows for maximum exhaust airflow when venting a clothes dryer. The built in damper prevents back drafts while the removable guard prevents critters from entering the home through the vent. The plastic vent has a UV additive to prevent premature fading due to the sun. Other models and colors available. Product Details ColorWhiteSize4 In.MPN224WSUPC039899982241Prop 65null Payment: --> Shipping: Most of our Items ship within 2-3 Business Days (Weekends not included) Posted domestic shipping/handling rates, as well as free shipping offers are applicable to the contiguous 48 United States only; military addresses, and other US territories are exempt from free shipping offers, unless otherwise specifically stated. Contact us for a shipping quote if there is no shipping rate posted for your location. Saturday, Sunday, and national holidays are not business days and are not included in our estimated shipping times. 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