Chimney Liners, For Nominal Duct Diameter 4 in, Outside Diameter 4 in, Overall Length 5 ft, Maximum Pressure Rating Not Applicable, Maximum Temperature Rating 470 Degrees F, Maximum Airflow Not Applicable, Material Aluminum, Material Grade 3003, Compatible with Fuel Type LP Gas, Shape Straight, Color Silver, End Type Snap Lock, Includes Not Applicable, Interior Texture Corrugated, Number of Plys 1, Wall Thickness 26 ga, Product Type Gas Vent Pipe, Inside Diameter 3 in, Connection Type Snap Lock