The Air Manifold creates a central point of connection for the safety components. Our 12″ long aluminum air manifold has (9) 1/4″ NPT ports. (3) of the ports are along the top and (6) are along the bottom. The two end ports are 1/2″ NPT. We added two small mounting holes on the front for easy attachment. You can place the manifold in any orientation that best suits your needs.