The FluidPRO® FHS-100 Fluid Handling System provides the solution you need for bleeding and flushing brakes, filling front or rear differentials, transmission, transfer cases or pumps! The unique features allows the choice of either filling or removing fluids. The change of operation is simple - just a quick turn of the knob is all it takes. Includes various attachments that are interchangeable using the single-handed operation coupler on top of the unit.