Heating Sheet Metal Pipe Fittings (3)

End Type LockTab x LockTab (5) Length 12 Inch (1) 2 Foot (1) 3 Foot (1) 4 Foot (1) 5 Foot (1) Material Aluminum (Inner Wall), Galvanized Steel (Outer Wall) (8) Material Thickness 28 Gauge (Outer Wall) (8) Size 4 Inch Diameter Type Round, Birdproof (1) Round, Double Wall, Type B Gas Vent (5) Round, High Wind (1) Round, Storm (1)