Fireside Chimney Supply FireFlex SmoothWall Tee Chimney Liner Kit - 6in x 30ft 2 Ply Your FireFlex Chimney Liner Kit will include a FireFlex Smooth Wall 316Ti .013 thick stainless steel liner top plate with rain cap and tee connector with 10" snout and clean out cap for horizontal connections. The strongest liner on today's market!