H&C 4RAA 4" MALE ADAPTOR (016098)

[ "Gas Vent Adapter", "Type Female, Gas Vent", "Size 4 Inch", "Length 6 Inch", "Material Thickness 0.012 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" ]