Flue: .016" Type 430 Stainless Steel
Casing: .019" Galvalume Steel or .022" Satin Coated (painted black)
Paint: Forrest “Stove Bright” flat black.
Seam: Interior and exterior seams are laser welded.
The telescopic length includes two pipe sections that must be used together. The joint between the pipe sections is cleaner looking than using a slip length. Telescoping from 16½" to 29" in length makes it ideal for up and out installations.