12", 14", 14.5", and 15" Oval Double Ply Smooth Chimney Liner (Only) Chimney Liner Kits > Single Ply Round Chimney Liner kits the liners are made of

the liners are made of seven ply seams that lock moisture and flue gases in the flexible 7

A perfect fit every time for your Rock-Flex stainless steel flue liner

and other heating applications requiring an 11" venting system

Product type: Single ply round chimney liner kit Inner diameter: 3" Outer diameter: 3

The 5 Inch Smooth Wall Round Chimney Liner Kit is a high-performance stainless steel chimney liner designed to improve draft efficiency

12", 14", 14.5", and 15" Oval Double Ply Smooth Chimney Liner (Only) Chimney Liner Kits > Single Ply Round Chimney Liner kits the liners are made ofThe 12", 14", 14. 5", & 15" Oval Double Ply Smooth Chimney Liner is a premium stainless steel chimney liner designed to improve chimney performance, safety, and durability in installations where a standard round liner will not properly fit. Manufactured from high quality 316 stainless steel, this double ply smooth liner is ideal for relining large masonry chimneys with limited space while protecting against corrosion, moisture, and flue gas leaks.