The FAMCO Hooded Wall Vent with Screen – Aluminum, also known as the SWVA, can be used for air supply or exhaust applications. This hooded wall vent is made from heavy duty .020 Aluminum and comes with a ¼ inch insect screen. The FAMCO SWVA Hooded Wall Vents are available in a range of sizes 3 inch to 12 inch. Please note that the size reflects the diameter of pipe that it fits. The FAMCO SWVA Hooded Wall Vents are manufactured in the United States by Famco and come with a 1-year warranty covering product defects and workmanship. If you have questions about this aluminum wall vent, please read the FAQs above or contact us directly by phone or email.