The Parker Watts Fluid Air R119-04C 1/2 Inch Air Regulator is a crucial component in HVAC systems designed to regulate air pressure for optimal performance. With a pressure range of 0 to 125 pounds per square inch (psi), this regulator efficiently regulates compressed air flow to sustain a steady supply of pressure. #ParkerWattsFluidAir #R119-04C #AirRegulator #ParkerWattsFluidAirp... https://www.partshnc.com/r119-04c-parker-watts-fluid-air-12-air-reg-0125