Flexible Metal Conduit - Reduced Wall, Finish Galvanized, Aluminum, Trade Size 1/2 in, Inside Diameter 0.63 in, Outside Diameter 0.92 in, Bend Radius 3 in, Overall Length 50 ft, Flexibility Flexible, Corrosion Resistant, Gray, Conduit Type Reduced Wall, Series 5600, CSA 69271, Federal Specification AA-5810 Type II, R14147, UL 1479