This power bleeder makes it easy to quickly and properly purge the air and old fluid out of your brake lines, essential for protecting pistons, cylinders, seals and for maintaining proper stopping power. Made of high rigidity plastic for enhancing it durability and corrosion resistance. The smooth bottle wall and housing makes it easier to clean. Holds 3L of hydraulic fluid - flush the entire system with one fill without the risk of running the reservoir dry. The enclosed operating instructions convey the process in descriptive descriptions, makes it easy to install. Works with all cars with 45mm threaded hydraulic fluid reservoir caps and suitable for most European models.