POWERTEC 70145 4-Inch to 3-Inch Reducer

Product Information

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The FAMCO UEV34RW plastic 4 inch to 3 inch duct reducer is manufactured by FAMCO in the United States and comes with a 1-year warranty against product defects and workmanship. FAMCO takes Online Security very seriously and uses the most trusted names in the business to secure your online payments - currently accepting all major credit cards, as well as PayPal, Apple Pay, and Google Pay. I used 6-32 x 3/4" machine screws but I made the holes smaller so you can drill them out for larger.inch Hose Tapered Adapter Dust Collection Reducer FittingI suggest printing with these settings:Filament type: PLA (I used PLA+)Nozzle diameter: can be 0. Other adaptation projects include range hoods, tumble dryers, grow tent ventilation systems, and connecting smaller ducts to bigger ducts. Using this duct adapter to connect your ventilation fans to your ducting will help retain your system’s CFM efficiency.

The model is slightly asymmetrical to fit my setup but it's not too extreme and should be useful to you too. Manufacturer warranties and service options may not be valid or available outside of the United States.It is commonly paired with bathroom exhaust fans and dust collection units to adapt them to smaller ductwork as a reducer. If you have any questions about this product, please refer to the FAQs above or feel free to contact us. Used to increase the duct diameter size from the bath fan 3 inch exhaust port to the 4 inch duct going to the outside.