The Aero 200mm Metal Roof Ducting Kit is designed to suit Rangehood outlets that are 200mm in size. This comprehensive kit includes a range of components to ensure efficient and effective ventilation. It features a 625mm length of galvanized steel rigid duct, as well as a 5-meter length of acoustic PVC coated flexi ducting. The kit also includes a roof cowl with ember mesh, which is made from aluminum for durability. A back draft damper with an outer diameter of 198mm is included to prevent air from flowing in the wrong direction. The kit also comes with rigid duct mounts, complete with threaded rods, as well as stainless steel pipe clamps for secure installation. An external duct connector with an inner diameter of 202mm is included for easy connection to the ducting system. Additionally, the kit includes a 150-125mm reducer with an outer diameter of 123mm, which is not included in the 200mm kit. Finally, a silicone flashing is provided to suit metal roofs. With all these components, the Aero 200mm Metal Roof Ducting Kit offers a complete solution for efficient and reliable ventilation in your kitchen.