Duct ReducerWhy Choose This:★Outer Diameter: 180 x 150 mm / 7.09 x 5.91 inch (Big*Small); Size: 120 x 0.6 mm / 4.7 x 0.02 inch (Height*Thickness)★Easy to Install: Connect the duct reducer to a metal duct, vent hose, fan outlet, or inlet, use a pipe clamp, glue, or tape to secure the connection if needed.★Duct Reducer and Increaser: The vent reducer increaser is used as a duct adapter for reducing or increasing the diameters of an air duct, it's a useful duct fitting for changing your duct system to the needed size while maintaining smooth airflow.★Good Material: The duct reducer connector adapter is made of galvanized iron sheet, which is not easy to rust, is corrosion-resistant, durable, strong, and thick enough for the ducting system. The surface of the zinc coating is smooth and shiny, without burrs, ensuring a good ventilation effect.
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