Professional tool for commercial or occasional use -Brake fluid bleeder works with your air compressor to quickly assist in your brake bleeding -Draws / replaces the fluid and bleed air bubbles in brake system of most vehicles -Uses standard workshop air supply 90 to 120 psi -Flush and refill the entire brake system by yourself with this brake fluid bleeder. -Quick, clean and efficient operation without specialised brake reservoir caps -One person operation -Does not require specialised brake reservoir caps. -Draws fluid from the bleed nipple enabling either bleeding or full replacement of fluid in system.