Copper Ground Pipe Clamps - Direct Burial 4-1/2"-6" - These Copper Electrical Ground Pipe Clamps are rated for Direct Burial.Copper Ground Pipe Clamps - Direct Burial 4-1/2"-6" features include: Direct Burial Electrical Pipe Clamps are cast of high strength, High Conductivity Copper Alloy For Connecting Grounding Electrodes to Water Pipe, Copper Tubing or Ground Rod Commonly used for Swimming Pools, Commercial, Industrial Agricultural Applications UL Direct Burial Ground Pipe Clamps have Screws made of Copper or Stainless Steel UL 467 listed for direct burial in earth or concrete cULus Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our Copper Ground Pipe Clamps - Direct Burial 4-1/2"-6"