Penn-Union Insulated Cable Connector, Dual Entry, 10 AWG to 250 kcmil, AL/CU

Multi-Tap Connector, 3 Conductors, In Line, 10 AWG to 250 kcmil, AL/CU, Black, Dual Rated, 600V, 90°C, UV Rated, Chemical Resistant, Hex Size: 5/16