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 100 ft Flexibility Flexible Corrosion Resistant Gray Conduit Type Reduced Wall Series 5600 CSA 69271 Federal Specification AA-5810 Type II R14147 UL 1479