The 485 Series regulator provides primary source pressure control in high flow inert gas applications such as bulk gas distribution systems, high purity chamber pressurization, and liquefied hydrocarbon analysis. Internal pressure equalization mitigates the delivery pressure variation from changing flows that are typical in pipelines. Compact and rugged, the CONCOA 485 Series regulator is rear panel mountable using a bracket or may be connected directly to the gas source via a flexible hose.