Metal-Fab's Type B line is known for its versatility, and this product is no exception. This round chimney pipe increaser is designed to increase your round vent diameter from seven to eight inches, allowing the connection of your 7" and 8" pipes. The outer wall of the increaser is constructed from .018" galvanized steel, while the inner wall is made of a sturdy aluminum alloy. The double-wall design allows a 1" clearance to combustibles, and the secure locking system means that no tools are required for installation. This product is listed to UL 441, and comes with a limited one-year warranty.
- Allows connection of 7" and 8" pipe
- .018" galvanized steel outer wall and aluminum alloy inner wall
- Double-wall design allows a 1" clearance to combustibles
- For use with Metal-Fab Type B Round Chimney Pipe
- Secure locking system requires no tools
- Hemmed flue and casing eliminate sharp edges
- Listed to UL 441
- Limited one-year warranty
- Small End: 7" Dia.
- Large End: 8" Dia.
- Height: 8.5"