Compression Coupling 316 Stainless Steel Trade Size 1/2 in Overall Length 2 3/16 in Finish Polished Compatible Conduit Type RMC Conduit Fitting Type Coupling Standards NEMA 4X UL For Use With RMC For Conduit Type RMC Weight 0.26 lb Compatible Conduit Trade Size 1/2 in Inside Diameter 0.85 in Outside Diameter 1.2 in