- Widely used in residential and industrial duct systems to reduce duct diameter and adapt to different installation environments. - 150 mm to 100 mm reducer for seamless connections between different pipe sizes, supporting efficient airflow and compatibility with fittings and accessories in various configurations. - Round metal vent duct connection designed to provide a secure, stable link for any ventilation project. - Two-layer metal construction increases rigidity and pressure resistance for reliable duct connections. - Includes two metal hose clamps for a secure, airtight fit. - Use scenarios: 1) Connecting a 150 mm exhaust duct to a 100 mm hose in bathroom, kitchen, or utility vent runs. 2) Retrofitting existing workshop or industrial ducts to accommodate different hose sizes. 3) Temporary or portable ventilation setups in construction sites or event spaces.