Flexible Metal Conduit - Reduced Wall Finish Galvanized Steel Trade Size 1 in Inside Diameter 1 in Outside Diameter 1.38 in Bend Radius 5 in Overall Length 50 ft Flexibility Flexible Corrosion Resistant Gray Conduit Type Reduced Wall Series 5500 CSA 69271 Federal Specification AA-5810 Type IV R14141 UL 1479