National Chimney M-Flex 3" x 25" Stainless Steel Standard Liner Kit watt1530 Click to see Louvre Rectangle

Click to see Louvre Rectangle Fire Pits Vinyl Protective Cover

Durable black wrought iron construction with hand-brushed bronze accents

Sturdy metal legs with foot pads protecting the floor

Created especially for larger fireplaces found in contemporary homes

Match a standard 1

National Chimney M-Flex 3" x 25" Stainless Steel Standard Liner Kit watt1530 Click to see Louvre RectangleM 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