Bridgeport 259-DC2 4-Inch Comp. Connector, Rigid/EMT Conduit Connector, Compression Installation, Die Cast Ball Burnished Mirror Smooth Zinc, Trade Size 4 Inch, Diameter 5-9/16 Inch, Length 2-9/16 Inch, 1-9/16 Inch Thread Length, Concrete Tight, Approval Ul 514-B, Csa, Standard Package 6, Used On Emt Conduit