4" X 36" Ventis Direct Vent Galvanized Chimney Pipe - VDV-0436
This is a perfectly round, perfect-fit pipe with smooth weld and precision end-forming technology. It features a Quick Connect screwless system, and it provides 1" clearance to combustibles.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.