DuraFlex Smooth Wall Stainless Steel Liner - 5.5" x 35'

Designed for use with solid fuel, non-condensing gas, and oil appliances, this 5.5" x 35' venting system features a smooth-wall inner liner that enhances airflow and minimizes creosote buildup, making maintenance simpler. Constructed from durable 316 stainless steel, it provides outstanding corrosion resistance—ideal for coal and other sulfur-containing fuel applications.