Halex 2 in. Electrical Metallic Tube (EMT) Compression Connectors 62320 - The Home Depot
Sigma ProConnex 1/2-in Electrical (EMT) Zinc-plated Steel Compression Connector Conduit Fittings (5-Pack) in the Conduit Fittings department at Lowes.com
Halex 1/2 in. Electrical Metallic Tube (EMT) Compression Connectors (5-Pack) 26230 - The Home Depot