R-900-30 Air Logic Miniature Precision Regulator 0-30 Psi Out P N Nos(39.7% similar) The knob is held on by a set screw and there's a nut under the knob for bulk head type install as well. The blue label on regulator says made in USA. No mounting bracket included. I will include a few brass barbed hose fittings, 1/1 6 and 1/8 , and l fitting and a swivel fitting. Has threaded ports ...(October 1st, 2016)