Float balls are the most efficient way to ensure fluids are pumped out of a tank and into a hydraulic component. They are used as a measuring tool within the tank. When fluid levels reach a certain point, it activates a trigger that siphons the liquid out of the tank and into a hose or piping system. Float balls are made of all kinds of different material. The most common are steel, rubber, and copper. You can also find accessories for the float ball such as a mount, float ball cage, and ball pein hammers. They easily attach to a latch that opens/closes the trigger within the tank. Wastebuilt tests each float ball to ensure they are reliable and efficient. You're sure to find the parts you need by shopping online at Wastebuilt!