4 inch Round Dryer Exhaust Duct, Galvanized Bathroom Fan Pipe, 12 Inch Long Extendable Duct for Ventilation Equipment$$Tools & Hardware Other

Sturdy galvanized steel construction, corrosion protection, oxidation and rust, able to securely clamp it in place without it bending or being deformed by the tight clamps Compatible with most ventilation equipment, one of the edges is narrowed, which gives you the freedom to assemble the desired length of the air duct Simple to install, plug and play, when you use 2 or more pipes, you can secure them with sealant, aluminum tape, screws, or any preferred fixing method It is widely used for the connection of exhaust system and intake pipe. Whether it is a replacement or an expansion, it will be a good solution for public, residential and industrial users