Genuine OEM Air Regulator for Air Compressor 1/4" NPT threads Rol-Air REG250M , Replaces: Emglo R14 , Dewalt 5131722-00 , Jenny , Quincy , J-Air , I/R and others. Universal filter style. Full Flow Gauge Ports In-Line or Modular Installation Balanced Valve Design Minimizes Effect of Variation in the Inlet Pressure on the Outlet Pressure AIR FLOWS IN ONLY ONE DIRECTION THROUGH THE REGULATOR. THIS DIRECTION IS INDICATED BY THE ARROW ON THE REGULATOR. In-Line or Modular Installation Full Flow Gage Ports Balanced Valve Design Minimizes Effect of Variation in the Inlet Pressure on the Outlet Pressure AIR FLOWS IN ONLY ONE DIRECTION THROUGH THE REGULATOR. THIS DIRECTION IS INDICATED BY THE ARROW ON THE REGULATOR. Air Compressor Regulator For all global air compressor applications UL Listed and CSA Certified. Temp. range: -22° to 257°F Regulator, Air Compressor, Standard Action, Port Type 1/4 In NPT (Female), Standard Pull-Turn-Press Action, Gauge Port Type 1/8 In NPT Female