Chimney Liners For Nominal Duct Diameter 6 in Outside Diameter 6 in Overall Length 25 ft Maximum Pressure Rating Not Applicable Maximum Temperature Rating 1 200 Degrees F Maximum Airflow Not Applicable Material Stainless Steel Material Grade 316 Compatible with Fuel Type All Fuel Shape Round Color Silver End Type Plain Includes Flexible Liner Interior Texture Corrugated Number of Plys 1 Wall Thickness 38 ga Product Type Chimney Liner Inside Diameter 6 in