HVAC DIYers and professionals, this galvanized transition duct makes connecting different duct types so much easier! This sturdy fitting transitions from a 3-1/4 x 10 inch rectangular duct to a 6-inch round duct, solving that common problem when your ventilation system mixes duct shapes. Made from quality galvanized steel, this transition resists rust and corrosion, ensuring long-lasting performance in various environmental conditions. The package includes both the transition duct and a roll of aluminum tape (1.7 inches wide, 25 feet long) for proper sealing - though you'll need to provide your own screws for the rectangular end installation. The smooth internal design significantly reduces wind resistance, helping your ventilation system work more efficiently with better airflow. Installation is straightforward: clean the surface, plug the round end into your hose and secure with the included aluminum tape, then mount the rectangular end onto your rectangular pipe with screws. Perfect for connecting exhaust fans, dryer vents, and various HVAC applications, this space-saving design helps create a more efficient ventilation solution without taking up valuable room. Whether you're upgrading your home HVAC system or working on a commercial project, this transition duct provides a reliable connection that improves your overall system performance.