EGS ES150100 Adapter explosionproof male/fem iron 1-1/2x1in

UNILETS® ES 25% sealing hubs with explosion proof and dust-ignition proof is used with threaded rigid metal conduit and IMC. Used to seal vertical conduit risers at switch gear and motor control centers, sheet metal structures, or cast boxes and enclosures. Can be used as a male thread enlarger or conduit hub in an ordinary location. Accurately tapped, tapered threads for tight, rigid joints and ground continuity. Allows up to 25% conduit fill in compliance with the National Electrical Code.