Duct adapter ensure smooth airflow by seamlessly connecting two duct openings of different sizes. Suitable for HVAC systems in bathrooms, kitchens, apartments, homes, offices, hotels, direct exhaust fans, range hoods, toilets, laser engravers, 3D printers, diesel heaters, roof vents, and more.SpecificationColor: WhiteMaterial: PVC PlasticTransition Between 6 inch and 4 inch Diameter DuctsPort Inner Diameter: 93-150 mm / 3.66-5.91 inchPort Outer Diameter: 98-155 mm / 3.86-6.1 inchHeight: 115 mm / 4.53 inchAluminum Foil Tape Size: 50 mm x 10 M x 0.06 mm / 2 x 393.7 x 0.0024 inch ( W*L*T)Packing List: 1 Pcs x Duct Reducer Increaser Adapter; 1 Roll x Aluminum Foil TapeAdvantageDurable Design: Air ducting adapter is made from premium PVC, this duct reducer ensures excellent airflow efficiency while resisting wear, moisture, and corrosion for long-term reliability.Smooth Airflow Transition: The precisely shaped reducer minimizes turbulence, allowing air to move seamlessly between different duct sizes without pressure loss or noise.Aluminum Foil Tape: Using our durable aluminum foil tape, air-tight seal effectively blocking outside air leaks to maintain indoor temperatures and reduce energy bills.InstallationSimply insert the reducer between two duct sections of matching diameters. For a secure fit, ensure proper alignment and sealed with the aluminum duct tape or clamps(not included) if needed.NotePlease check the inner and outer diameter of the duct reducer carefully before purchasing. Verify compatibility with your ventilation setup before installation.
