Ground Receptacles of the utmost quality are built for when temporary grounds must be established. They are used for grounding aircraft during refueling. The heavy-duty bronze floor receptacle has a flush mount cover attached to the main body. Its top is 3” in diameter and 3-1/2” tall. A replaceable brass ball stud inside the receptacle provides the termination point for grounding clamps. Harger’s receptacles are designed to be exothermically connected to the ground electrode system. ISP Supplies is a certified distributor of Harger, offering its certified Ground Receptacles at affordable prices.