OTC (8101 Fluid Evacuator and Brake Bleeding Tool Use to bleed brake systems and remove a variety of fluid from vehicles such as antifreeze oil transmission fluid and gear lube Quick connect locking hose adapters and ball-style on/off valve on hose prevent fluid leakage Equipped with a relief valve to prevent over-pressurizing the tank Complete with a brake bleeding hose fluid evacuation hose and 6-liter capacity tank Operates with shop air