The Aero 150mm Metal Roof Ducting Kit is designed to provide efficient ventilation for rangehood outlets ranging from 125mm to 150mm. This kit includes various accessories to ensure a complete and hassle-free installation. The package consists of a 625mm length of galvanized steel rigid duct, a 5-meter length of acoustic PVC coated flexi ducting, an aluminum roof cowl with ember mesh, and a back draft damper with outer diameter measurements of 148mm and 198mm. Additionally, the kit includes two rigid duct mounts with threaded rods for secure mounting, two stainless steel pipe clamps for added stability, an external duct connector with inner diameter measurements of 152mm and 202mm, and a 150-125mm reducer with an outer diameter of 123mm (exclusive to the 150 Kit). To ensure a watertight installation on metal roofs, a silicone flashing is also included. With the Aero 150mm Metal Roof Ducting Kit, you can effectively and safely exhaust air from your rangehood while maintaining a sleek and professional appearance on your roof.