Metal-Fab 3M18A Type B Double Wall Adjustable Round Gas Vent Pipe, 3 in ID x 18 in L x 1/4 in THK

Product Description

The Metal-Fab 3M18A is a Type B double wall adjustable round gas vent pipe. It features a three-inch inner diameter and is eighteen inches long with a thickness of one-fourth inch. This vent pipe is made from aluminum and designed for use with approved category I appliances that burn natural or LP gas.

• Constructed with an outer wall of galvanized steel for durability.
• Push-tab locking system for secure installation.
• Tested for a minimum clearance to combustibles.

Product Highlights

This vent pipe allows for easy assembly and disassembly without tools, using a positive twist-lock mechanism. The design reduces sharp edges and facilitates space savings in standard stud walls.

Product Information

Standard Information

• Brand: Metal-Fab
• Part Number: 3M18A

Technical Specifications

• Country of Origin: US
• Diameter: 3 in ID
• Length: 18 in
• Material: Aluminum
• Thickness: 1/4 in
• Series: M Series
• Mfg Standards/Approvals: NFPA-54/211, UL 441