SSBC A0730 Black Anodized Finish Adjustable Proportioning Valve and Distribution Block Adjustable proportioning valve regulates rear brake pressure, helping to maintain correct brake bias between front and rear brakes Designed for dual bowl master cylinders Distribution block connects to the master cylinder and distributes brake fluid to all four wheels Includes 5 stainless steel 3/16" fittings Includes wiring pigtail for rear brake light switch