Metallic Conduit (RMC) Heavy-Wall 304 Stainless Steel Trade Size 1 1/4 in Inside Diameter 1.38 in Outside Diameter 1.66 in Wall Thickness 0.4 in Nominal Length 10 ft Conduit Type RMC Gray Conduit Style Conduit Full NEC Compliance UL File #E230584 UL/CUL Listed UL 6A and ANSI C80.1 Connection Type Threaded Finish Polished Max Operating Temp 1 600 Degrees F Min Operating Temp -150 Degrees F Overall Length 9 15/16 ft