National Chimney M-Flex 4" x 35" Stainless Steel Standard Liner Kit pilot-assembly (Traditional: 1 required

(Traditional: 1 required

Manchester Tool Set

78% Maximum Efficiency

BH3230006 Product Type

Constructed with high-grade Stainless Steel

National Chimney M-Flex 4" x 35" Stainless Steel Standard Liner Kit pilot-assembly (Traditional: 1 requiredM 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