The Bendix R-12® Series Air Brake Relay Valve is designed to provide superior durability and reliability for your vehicle. This valve is designed to fit perfectly and provide optimal performance for your vehicle. It is constructed with high-quality materials and components to ensure long-lasting performance and reliability. The valve is designed to provide superior air flow and pressure control, allowing for smooth and efficient braking. It is also designed to be easy to install and maintain, making it a great choice for any vehicle. With its superior design and construction, it is the perfect choice for ensuring reliable and safe braking performance. FleetPride is your First Click in Heavy Duty®.