Aluminum Ground Pipe Clamps 1/2"-1" - Tin-Plated Aluminum Ground Pipe Clamps for use in Grounding Pipes Conduits and Ground Rods.Aluminum Ground Pipe Clamps 1/2"-1" features include: For Connecting Copper or Aluminum Ground Electrode to water pipe, ground rod, copper water pipe, galvanized pipe or steel conduit AL9CU Dual Rated for Copper or Aluminum Conductors Tin-Plated Ground Clamps manufactured from high strength 6061-T6 Aluminum alloy Aluminum Ground Pipe Clamps are Tin Plated for low contact resistance and corrosion protection Tin-Plated Aluminum Set Screw for Corrosion Resistance Zinc Plated Steel Mounting Hardware cULus Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our Aluminum Ground Pipe Clamps 1/2"-1"