The DirectVent Pro 4 x 6-5 8 Galvanized Chimney Liner Termination Kit is a component that is used in a typical venting installation. The chimney liner termination kit includes a termination connector and flashing. DirectVent Pro 4x6-5 8 termination caps, 3 flex, and co-linear flex connectors are sold separately. The DirectVent Pro chimney liner termination kit must be tested and listed for each appliance. Refer to stove manufacturer's installation instructions.ADA Compliant: No Depth: 18 Fuel Type: Natural Gas, Liquid Propane Material: Aluminum, Galvanized Steel Pipe Class: Direct Vent Pipe Inside Diameter: 4 x 6-5 8 Pipe Shape: Round Style: Contemporary Modern UL Listed: Yes Vent Construction: Double Wall Weight: 6 Width: 18