Made from PVC with excellent resistance and durability, extending product lifespans Easy Installation: Just screw in the screws from the four holes of the wallboard (Screws not included Features straight flange joints to ensures stable ventilation pipe connection, air leaks from loose fittings Easy Maintenance: The quick disconnect feature of this connector makes it to clean around the vent systems, helping maintain optimal airflows and in your laundry area Suitable for a variety of venting needs, this connector can be used in dryer ventilation, bathroom exhaust, laundry rooms, and more, providing a practical solution for environments, Manufacturer: OSNIYAW