Gas Vent Pipe For Nominal Duct Diameter 4 in Outside Diameter 4 1/2 in Overall Length 2 ft Maximum Pressure Rating Not Applicable Maximum Temperature Rating 550 Degrees F Maximum Airflow Not Applicable Material Steel Material Grade G90 3105 Compatible with Fuel Type LP Gas Shape Round Color Silver End Type Snap Lock Includes Not Applicable Interior Texture Smooth Number of Plys 2 Wall Thickness 26 ga Product Type Gas Vent Pipe Inside Diameter 4 in Connection Type Snap Lock