Effectively replace oil/empty air One man operated brake fluid replacement tool, easy and simple Universally work for cars, trucks and engineering vehicles Change the traditional tiring and boring oil replacing method, no dirty oil stained on floor Specification: Material: ABS and Metal Hose Length: 80 cm Max Pressure: 100 PSI Bottle Capacity: 300 ml Bottle High: 20.5 cm Operation 1.Take away the dirty brake fluid from the tank. 2.Put in the new brake oil. 3. Connect the hose between the equipment and the brake branch pump,then Start the car let engine running. 4.Twist the screw to be loose ,but not completely. Then, open valve to start siphoning the fluid out. Please turn off the valve after screwing when it finish. 5.Our tool fit for universal cars , you can use the tapered spout which is offered in the package avoid air leaking. Note: 1.Please lift the tool over the brake pump to ensure it work properly. 2.The switch handle used for Vacuum of this item, Pressure can be controlled by the compressor.(you can convert high pressure into the pressure) 3. Each compressor is not the same, what pressure is more suitable for you to use, you can slowly from low to high pressure to debugging.