H&C 7RT7 7" X 7" TEE

[ "Gas Vent Tee", "Type 2-Wall", "Size 7 Inch x 7 Inch x 7 Inch", "End to End Dimension 13-1/2 Inch", "Material Thickness 0.016 Inch (Inner Wall), 0.018 Inch (Outer Wall)", "Material Aluminum (Inner Wall), G90 Galvanized Steel (Outer Wall)", "Applicable Standard UL", "Used On Type B Gas Vent System" ]