Lambro 4-in x 4-in Plastic Round Duct Elbow

The 4-in plastic elbow attaches to the dryer exhaust outlet with using a clamp. The gasket secures the elbow to the dryer and allows for quick connect/disconnect from the exhaust outlet. Semi-rigid duct can thread onto the elbow without the use of a clamp. Flexible duct requires the included clamp to secure the duct to the elbow.