GROUNDING BALL Existing customers can log in to their account for additional savings Call for price Categories: Tank Truck Equipment, Chemical, Chemical Tank Truck Parts, Liquid - Petroleum, Petroleum Tanks Truck Parts Description Description When using the FloTech trailer mounted ground ball the trailer cannot be loaded unless the terminal ground is directly connected to the ground ball. Part #: FT451 Weight: 0.2400 lbs Related products Wooden Dip Sticks Sequential Vapor Vent PPV VENT Gate Valve (TTMA x NPT)