Flexible Metal Conduit - Reduced Wall Finish Galvanized Steel Trade Size 1/2 in Inside Diameter 0.63 in Outside Diameter 0.92 in Bend Radius 3 in Overall Length 100 ft Flexibility Flexible Corrosion Resistant Gray Conduit Type Reduced Wall Series 5500 CSA 69271 Federal Specification AA-5810 Type IV R14141 UL 1479