National Chimney M-Flex 3" x 25" Stainless Steel Standard Liner Kit liquid-propane this contemporary front provides a

this contemporary front provides a decorative accent that adds allure to your firebox

Stove Adapter-Standard

but it will also protect you and yours from sparks while enjoying your outdoor fireplace

Ensures long service time with premium aluminum alloy

12" Diameter Anchor Plate With Damper

National Chimney M-Flex 3" x 25" Stainless Steel Standard Liner Kit liquid-propane this contemporary front provides aM 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