The Appleton NTCC250 is a rigid or IMC conduit compression coupling rated for 2-1/2″ trade size, built from malleable iron to deliver durable, code-compliant support in harsh industrial installations. It features a threadless design for tool-friendly assembly and is concrete-tight for use in both dry and wet locations. With an outside diameter of approximately 3.63″ and a length near 5″, it allows secure connection of conduit segments without compromising structural integrity. Designed, tested, and certified to UL 514B and CSA C22.2 No. 18.3 standards, it provides trusted grounding and bonding performance. Ideal for heavy-duty electrical raceway systems in commercial, industrial or infrastructure applications, this coupling ensures reliability and long-term service.