GROUND CLAMP 1/2" - 1" JD-01 GROUND CLAMP 1/2" - 1" JD-01 Description: Used with 1/2″-1″ Pipe for Direct Burial in Earth or Concrete Features: Material: High Copper Accessories Material: Stainless Steel Water Pipe Size: 1/2″ – 1″ Coundutor Range: 10 sol – 2 str Rebar Size : ‘4″ – 8″