Type-B Gas Vent Products are Tested and Listed to UL 441 for Approved Gas Appliances and Feature Our Innovative Twist-Lock Connection and Locking Tab, Eliminating the Need for Sheet Metal Screws
Metal-Fab Type B Gas Vent Combines Hemmed Flues and Casings that Maximize Product Durability and Reliability and Minimize Installation Time
Designed for Versatility, Metal-Fab Type-B Gas Vent Products 3"-6" Adapt to Major Competing Brands and When Installed Establish a UL Listed Connection