National Chimney M-Flex 7" x 25' Stainless Steel Standard Liner Kit h2.39 like your furnace

like your furnace

Unique double louvered cabinet doors offer adequate ventilation

10-Year Factory Warranty Against Corrosion Perforation

75" Installation Type Post Mount Finish Weather Green Light Assembly Single Upright Gas Mantle Burner Glass Panes Beveled Tempered Glass (6) Finial Loop - Brass Orifice Size 70 BTUs/Hour 2800 Gas Use/Month (cf) 2016 Technical Dimensions

Brand DuraVent Series FasNSeal Flex Model 5FSFLEX-50 Product Type Flex Length (Custom)

National Chimney M-Flex 7" x 25' Stainless Steel Standard Liner Kit h2.39 like your furnaceM FLEX standard liner kits are used for wood, oil, coal, and gas appliances. Each of our . 006" (CB) and . 005" (CBF) standard kits comes with installation instructions and a lifetime warranty. This lining kit has been installed in venting applications since 1992 and continues to be the most popular "all fuels" kit we offer. We stock 3" 8" inside diameter (ID) as well as 6" 8" outside diameter (OD) in our . 006" (CB). What's Included 1x Installation