Sturdy Construction: Our galvanized transition duct made from good-quality galvanized steel,This material is to rust and high temperatures, thus increasing its service life. Ease of Installation and Maintenance: This pipe transition is easy and efficient to install, the galvanized round transition before use, attach one end to the hose, secure it with adjustable stainless steel hose clamps, and then secure the other end to the rectangular pipe with screws. Improved Ventilation System: Diameter galvanized transition pipe its smooth internal design can greatly reduce the wind resistance, so as to reach the perfect wind effect, providing you with a comprehensive and effective ventilation solution. Sizes: Our microwave vent kit measures around 3-1/4 x 10 x 6 inches in size, making it ideal for a 3-1/4 x 10 inches pipe and a 6 inches diameter round pipe; With its air leak proof and space saving design, it is an ideal choice of advanced ventilation projects. Application Scenario: The rectangular to round duct seamlessly transitions from rectangular to round shapes, enabling a seamless connection to your exhaust fan, dryer vent cover, Hood Vent and vent seal. Color:Silver Material:Metal Package Contents: 1 * Galvanized Duct Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.