... fittings 1 Die cast Aluminum, polished 2 Set Screw Type,stright EMT coupling,conduit fittings 1 Die cast Aluminum, polished 2 Set ... Screw Type,stright 3.Electrical metallic tubing connector4.Rigid,Traded size ... "D-150D-150AL1-1/2"D-200D-200AL2" EMTset screw coupling