Metal-Fab Adjustable Type B Round Chimney Pipe Length - 7" x 18" - 7M18A

A high quality chimney is essential for the safe operation of any gas appliance system. A chimney of Metal Fab parts is a solid option that ensures quality and durability that will last a lifetime. This adjustable chimney pipe section features high quality double wall construction that allows minimal insulating space for safety. The twist lock system allows easy and secure installation without the need for tools. The hemmed flue design eliminates sharp metal edges for worry free installation.

• Effectively vents Category I appliances such as gas-fired fireplaces, furnaces, water heaters, and boilers
• .018" galvanized steel outer wall and .012" aluminum alloy inner wall
• 1/2" insulating air space
• Length adjusts from 3" to 14"
• Double-wall design allows a 1" clearance to combustibles
• Positive twist lock system creates secure connections without tools
• Hemmed flue and casing eliminate sharp edges
• Listed to UL 441
• Limited one-year warranty
• Approximate Dimensions: 7" inner diameter x 18" L