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The Metal-Fab Inc MPN 3M6 is a three-inch by seventy-two-inch galvanized steel double wall round vent pipe. This type-B gas vent is suitable for various applications, including natural gas and propane-fired appliances. It is designed for use with gas furnaces, heaters, fireplaces, and boilers. It meets NFPA 211 standards for chimneys and vents and NFPA 54, the national fuel gas code.
This round vent pipe allows for efficient venting of gas appliances while maintaining compliance with safety regulations.
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