6"D, Painter Black, DVL Close Clearance Connector Kit, Use Kit To Connect Between Appliance & Chimney For A Typical 8' To The Ceiling Installation, Includes 1 Each DVL/DuraBlack Adapter, 2 Each 24" DVL Double Wall Black Pipe, 1 Each 12" DVL Double Wall Adjustable Black Pipe, Air Insulated Design Reduces Clearance To Combustibles, 6" To Walls, 8" From Top Of Horizontal Run To Ceiling, Subtract 3/4" For Installed Length Constructed With A Stainless Steel Inner Wall, Closest Clearance To A Wall Of Any Connector Pipe, Improves Stove Performance By Maintaining High Flue Gas Temperatures For Strong & Steady Draft, Stays Hot Longer, Minimizes The Formation Of Creosote, Same Life Expectancy As The Chimney, .016" Stainless Steel Inner Wall, .018" Galvanized Outer.