6" x 60" DuraLiner Stainless Steel Oval Flex Pipe is used through the damper and smoke shelf area. Use with DuraLiner Insulation Kit (ProMesh and ProFoil), where flex extends into clay liner, for zero-clearance applications. Built from 1-plyconstruction, .005" 304 stainless steel.
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.