Air manifold block is the starting points for air manifold systems. Can be mounted in line or at a take-off point easily with the 5/11" diameter threaded hole design. Single Row Manifold type and Corrosion Resistance material. It takes one line of air from a pump, air cylinder, compressor, vacuum engine, or other such system and splits it into many of them. All ports are in the same size, so that you can use it as a 1 in 6 out, 2 in 5 out, 3 in 4 out and so on to meet your own requirment.