HPS AST-3F-500 5" OD 6061 Aluminum Straight Pipe Tubing 16 Gauge x 3 ftSpecifications MPN: AST 3F 500 UPC: 648044823195 Finish: Mill Finish Material: 6061 Aluminum Color: Mill Finish Outside Diameter Base (B): 5" (127mm) Hose Length Leg Length: 3 Feet Features Material: 6061 T6 aluminum Wall thickness: 2. 5mm Tubing outside diameter: 5 inch (127mm) Length: 3 feet Commonly used in industrial, automotive, marine and aerospace applications Great for custom fabrication projects such as DIY air intakes, cooling systems, turbo