National Chimney M-Flex 5" x 25" Stainless Steel Smooth Wall Liner Kit v12 Click to see Reflective Fire

Click to see Reflective Fire Glass (140 lbs)

Integrated end supports provide added stability for firewood

Model 351212 Flue Size 12" x 12" Size Width: 10" - 12

Ranger: 3-4

Product Type Slip Section Pipe Length 24" Diameter 8" Finish RAL 6008 38/50008 Powder Coat Documents & Files

National Chimney M-Flex 5" x 25" Stainless Steel Smooth Wall Liner Kit v12 Click to see Reflective FireM FLEX Smoothwall Standard Liner Kits are used for the same applications as the standard M FLEX liner kits. However, the Smoothwall Standard Liner Kits offer superior flexibility with a higher BTU capacity. Each of our smoothwall standard kits comes with installation instructions and a lifetime warranty. We stock 3" 8" inside diameter (ID) kits. What's Included 1x Installation Instruction 1x Liner Kit Basic Liner Kit Includes: UL 1777 Listed and