5 3/4" × 9 1/2" HomeSaver 316-Alloy Stainless Steel RectangleFlex 25' Pre-Cut Liner features 4 interlocked plys or strips of .018" stainless steel. It relines 8" × 12" flues without downsizing, and it's great for wood, coal, oil, pellet, non-condensing gas.
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.