Clamp-on Style Entrance Caps for Rigid IMC and/or EMTDescription Clamp on Style Entrance Caps These Mast Reducer Entrance Caps simply clamp on to Multiple Rigid, IMC and or EMT sizes ranging from a 1 2 inch to 4 inches. This item uses an easy to use a clamp to secure the entrance cap to the various types of conduit. It is made of a durable Gray metal housing with a steel clamp. Also included is an adapter that can fit multiple sizes of cable. Features Features Works on Rigid, IMC and or EMT conduits