National Chimney M-Flex 4" x 15" Stainless Steel Standard Liner Kit h22.63 Large Six-Sided Pier Mount with

Large Six-Sided Pier Mount with Stud (RM5) Offers a classic

Selkirk 6" to 14" Inner Diameter

and all necessary fittings to convert your unit from propane gas to natural gas

Grill Ultimate Bundle

Natural Gas BTU

National Chimney M-Flex 4" x 15" Stainless Steel Standard Liner Kit h22.63 Large Six-Sided Pier Mount withM 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