The Metal-Fab 8M4 is an 8-inch by 4-foot double wall vent pipe designed for gas vent systems. This product is made from a combination of aluminum alloy for the inner wall and G90 galvanized steel for the outer wall, ensuring durability and efficiency in venting applications. The twist lock end type provides a secure connection without the need for additional fasteners.
This vent pipe is suitable for various gas appliances, such as gas boilers, fireplaces, and furnaces. It includes an annular insulating air space that enhances efficiency and safety.