Cable Support Plug, Type 1-Piece, Body Type Tapered/Knurled, Conduit Type Rigid/IMC/EMT, Voltage Rating 600 V, Conduit Position Vertical, Conductor Size 18 to 8 AWG, 6 to 1/0 AWG, 2/0 to 4/0 AWG, 4/0 AWG to 750 KCMIL (Aluminum/Copper Clad Aluminum/Copper), Conduit Size 3 Inch, Cable Type Non-Armored, Number of Conductors 5 (Different Size), Size 4-1/2 Inch Dia X 3-1/8 Inch H, Material Impregnated Hardwood, Application Indoor, Approval UL 514B, CSA C22.2, Applicable Standard NEC 300-19