The Metal-Fab 4MCHP is a four-inch galvanized steel vent cap designed for double wall type B gas vent applications. It is suitable for category I natural gas or propane fired appliances, including gas furnaces, heaters, fireplaces, and boilers. This vent cap meets the standards set by NFPA 211 for chimneys, fireplaces, vents, and solid-fuel burning appliances, as well as NFPA 54, the national fuel gas code.
The Metal-Fab vent cap ensures safe venting for gas appliances, providing reliability in operation.