The FAMCO SDWCU copper wall vent is a hooded wall vent that is primarily used for air exhaust applications. This vent is not rated for dryer ventilation, the screen will trap lint and could create a fire risk. Quality constructed from heavy duty 16 ounce, 24 gauge copper. The FAMCO SDWVCU wall vent includes a ⅛ inch mesh screen to prevent duct intrusion by foreign objects, as well as a built-in hinged backdraft damper. The FAMCO SDWVCU is available in sizes ranging from 3 to 14 inch diameter. Make sure to take accurate measurements to ensure you order the right size. The FAMCO SDWVCU wall vent is manufactured by FAMCO in the United States and comes with a 1-year warranty against product defects and workmanship. If you have any questions about this wall vent, please refer to the FAQs above or feel free to contact us. Established in 1989, Fresh Air Manufacturing Company (FAMCO), headquartered in Meridian, Idaho is one of the Pacific Northwest’s largest manufacturers of Roof Flashings, Pipe Flashings, Ventilation Products, HVAC Accessories, Plastic Air Ventilation Products, and Specialty Building Products. FAMCO builds high quality products that have been trusted by HVAC, Mechanical, Roofing, and Building Professionals for decades. Our quality starts with using the finest raw materials available and having our experienced team following lean manufacturing principles. Under Lean Manufacturing, every procedure is measured, analyzed and checked for quality, efficiency and customer satisfaction. It is the veteran management team, industry knowledge and desire to always improve that separates FAMCO from the competition. We pride ourselves on the guarantee of quality Ventilation and Building Products at FAMCO.