Grounding Connector Grounding Wire Size 10 AWG SOL to 2 AWG STR Material Bronze Number of Wires - Grounding 1 Description/Special Features Bare Armored or Unarmored Cable For Maximum Ground Conductor Wire Size 2 AWG STR For Minimum Ground Conductor Wire Size 10 AWG SOL For Use With Copper Conductor Water Pipes Grounding Wires Connected To 1/2 in to 1 in Pipe Standards UL Listed UL467 Type - Grounding Connector Mechanical Accessory Type Ground Clamp For Maximum Pipe Size 1 in