The Carlisle Brake & Friction, Brake Control Manifold's are custom designed to meet specific customer requirements. Carlisle manifolds combine individually plumbed components into a single integrated body with numerous functions such as accumulator check valves, pressure switches, pressure reducing valves and directional control valves. Unique design characteristics integrate components to energize and protect the park brake. A single body structure reduces installation costs and plumbing, simplifies the circuit, saves space and eases maintenance demands.