Perfect Vision PVAGC1UL Ground Clamp, 2 piece fits 1/2 - 1 (UL)

This two piece ground clamp fits pipers between 1/2" and 1". It is UL/CUL Listed. The two jaws (clamps) are made of copper alloy and the bolts have slotted round heads and are made of zinc plated steel. Use in conjunction with other grounding supplies to protect against lightning strikes and power surges.