2Pcs 4" To 3" Duct Reducer Ducting Airflow Tube Increaser Adapter Pipe Fitting

This duct pipe reducer connector is used to connect the pipes of equipment such as bathroom fans, range hoods and dust collectors to the ventilation duct system, you can connect two air ducts of different diameters to create a seamless ventilation system duct. Suitable in home, offices, kitchen, factory or apartments.SpecificationColor: WhiteMaterial: ABSHeight: 80 mm / 3.15 inchInner Diameter: 100 x 75 mm / 3.94 x 2.95 inch (Big*Small)Outer Diameter: 103 x 78 mm / 4.06 x 3.07 inch (Big*Small)Packing List: 2 x Duct Pipe Reducer ConnectorsAdvantage1. Make of durable ABS material, lightweight, waterproof, moisture resistant, wear-resistant and pressure resistance, not easy to deform, can be used for a long time;2. Smooth interior surface design can reduce the resistance of ventilation; The interface can be connected to two different sizes of pipe, which has a good sealing effect, meeting your various DIY pipe decoration needs.InstructionEasy to install, just connect the two ends of the connector with pipes of appropriate size.NOTE: Please choose the right size according to your needs.