National Chimney M-Flex 4" x 25" Stainless Steel Standard Liner Kit d9.63 000 Propane: 40

000 Propane: 40

Whether you need to heat your warehouse

5" (D) x 29" (H)

Proflame II Remote

018" thick G90 Steel for sizes 3" to 14" diameter Inner Diameter 10" Outer Diameter 11" Height 19" Listings/Standards NFPA 54

National Chimney M-Flex 4" x 25" Stainless Steel Standard Liner Kit d9.63 000 Propane: 40M 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