Burndy GAR1626 Grounding Clamps; Clamp Type: Grounding Clamp ; Compatible Rod Diameter (Inch): 1-3/8-1-1/2 ; Maximum Compatible Pipe Size (Inch): 1-1/4 ; Compatible Wire Size (AWG): 4-2/0 ; Overall Length (Decimal Inch): 1.56 ; Material: Copper Alloy