New design one user operation brake bleeder features unique patented valve system to replace manual tap as used on previous models Float valve shuts vacuum down when container reaches full to prevent dangerous brake fluid spray if capacity is accidently exceeded Compact size (800ml capacity) allows for easy operation within wheel arch area Internal shut off valve closes when not in use to prevent fluid spills when stored Includes Autofiller unit (500ml capacity) with venting system providing unbroken continual fluid flow Retaining clip provides clamping to all master cylinder reservoir types Adjustable height positions on filler spout allows for correct fluid level during bleeding, preventing brake fluid reservoir running dry