Copper Ground Clamps - Rigid Conduit Hub Strap 1/2"-1"Copper Ground Clamps - Rigid Conduit Hub Strap 1/2"-1" features include: Suitable for connecting grounding strap to rigid conduit to water pipe, ground rod and copper weld tubing 1/2" or 3/4" Conduit hub extension strap 8" Copper Strap Hub Swing 360° for Easy Alignment Cast of High Strength High Conductivity Copper Alloy Steel Set Screws are Zinc Plated for Corrosion ResistanceFor water heater applications has 2 pipe clamps 24" of 6 awg copper wire included UL ListedOrder Qty of 1 = 1 Piece Below is more info on our Copper Ground Clamps - Rigid Conduit Hub Strap 1/2"-1"