Grounding Connector, Grounding Wire Size 4 to 2/0 AWG SOL, 5 to 2/0 AWG STR, Material Copper, Number of Wires - Grounding 1, Description/Special Features Direct Burial, For Maximum Ground Conductor Wire Size 2/0 AWG STR, For Minimum Ground Conductor Wire Size 4 AWG SOL, For Use With Copper Conductors, Ground Rods, Pipes, Rebar, Grounding Wires Connected To 4 in Pipe, 4 in to 4 1/2 in, Standards UL Listed Direct Burial, UL467, Type - Grounding Connector Mechanical