Coupling, Trade Size: 1 In, Outside Diameter: 1.88 In, Length: 2-1/2 In, Flexibility: Rigid and Imc, Material: Steel and Malleable Iron, Connection: Compression, Standard: Ul 514B, Ul File Number E11853, Nema FB-1, For Joining Lengths Of Steel Emt to Rigid Metal Conduit or Imc