With a power bleeder, one person can easily, safely, and effectively bleed the hydraulic system. The motive products powerbleeder works just like professional pressure bleeders -- at a fraction of the cost. Here 's how it works: a tank containing hydraulic fluid is connected to the fluid reservoir on your vehicle and pressurized with air from ffa hand pump (our precision pressure gauge ensures that the hydraulic system is not damaged due to excessive pressure). When one of the bleed valves on the vehicle is opened, old hydraulic fluid is expelled as new fluid from the tank is forced into the system. Bleeding has never been easier. There 's no need for a helper to constantly pump the pedal while you open and close the bleed valves. And the 2 liter tank prevents the need for constant refilling of the fluid reservoir, thereby avoiding corrosive spills. Pressure bleeding provides the best results; the power bleeder 's heavy duty tank holds up to 2 quarts of fluid, enough to fully flush and clean the hydraulic system without the need to refill the tank; our precision pressure gauge prevents over pressurization and our custom machined adapter securely attaches to the fluid reservoir for the safest and most effective operation; the hand-operated pump is built in-no other pressure source (air compressor, spare tire) is needed; fast, easy and reliable one-person operation. Works on hydraulic clutch systems, too.