The Bendix MV-3® Air Brake Manifold Control Dash Valve is a reliable and efficient air brake system designed for heavy duty vehicles and trailers. This single body valve accommodates a dual circuit supply through a double check valve and receives air supply from the primary or the secondary service reservoir, whichever is at the higher pressure. The valve body, plungers and spools are made out of non-metallic, noncorrosive material to ensure it lasts longer in service. It also features a built-in pressure relief valve that helps protect the system from over-pressurization and provides a safe and smooth operation. FleetPride is your First Click in Heavy Duty®.