We offer a 3 in 1 interchangeable tank plug that is designed to fit three different tank hole sizes. It can be used in lieu of filling a gap or void after removing a Low Voltage Bushing, tap switch, etc. This concept helps to eliminate the necessity to stock three different tank plugs. They are constructed of aluminum and furnished with the mounting cup, bolt, and gaskets. The common tank hole sizes for this plug are: 1.06”, 1.295”, 1.437.