National Chimney M-Flex 4" x 15" Stainless Steel Standard Liner Kit btu38225 UL 441 Clearances 1" Minimum

UL 441 Clearances 1" Minimum clearance to combustibles for 3" - 24" Diameter 8

It has 12-inch 304 stainless steel burner that produces 65K BTUs of heat and glimmering flames

Sold As Each 3

Model # HLDS01-GTSS Material Stainless Steel Reflector 18" x 18" x 2" (H) Base Diameter 19" x 19" x 36" (H) Tank Housing Diameter 14

National Chimney M-Flex 4" x 15" Stainless Steel Standard Liner Kit btu38225 UL 441 Clearances 1" MinimumM 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