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