Metal-Fab Type B Round Chimney Pipe Length - 7" x 18" - 7M18

A high quality ventilation system is essential to any natural gas appliance system. Natural gas furnaces, boilers, fireplaces, water heaters, and many more require a ventilation system to operate properly and safely. This Metal-Fab chimney pipe section offers the quality and convenience you need for your natural gas appliance system. The chimney pipe employs a twist-lock system that makes installation easy. In addition to this, the metal casing is hemmed to eliminate dangerous sharp edges. It's dual-wall construction saves space and ensures safe operation. Quality and safety are two things that this chimney pipe offers, but most importantly, it offers you peace of mind.

• 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
• 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