Air regulator for precisely regulating and maintaining constant air pressure | Accurate downstream air pressure regulation between 1 and 150-psi | High impact composite regulator knob and steel protected gauge | 60-Scfm at 100-PSI with 1/4-inch NPT ports | Comes with a 1-year limited | One directional air flow (right to left) when configured as pictured with knob on top. (Can be configured with knob on bottom for left to right flow. MUST be set up in the correct direction of air flow to work properly | Max inlet pressure 200 PSI. Max output pressure 150 PSI.