EMT Conduit Connector; Type Set Screw; Throat Type Insulated; Trade Size 3 Inch; Diameter 4.25 Inch; Length 3.25 Inch; Thread Length 1.5 Inch; Material Zinc Electroplated Malleable Iron; Constructional Feature Concrete-Tight; Standard Package 10; Approval UL 514B; Used On EMT Conduit; ROHS Compatible; Applicable Standard Federal Specification A-A-50553, NEMA FB-1; Insulation Temperature Rating 105 Deg C