Campbell Hausfeld RE300000AJ Air Pressure Regulator

The Campbell Hausfeld RE300000AJ air pressure regulator is a genuine OEM replacement part that sits in the regulator assembly of Campbell Hausfeld air compressors to deliver stable downstream pressure for air tools and finishing equipment. It uses 1/4-inch NPT threaded connections, a common footprint for Campbell Hausfeld regulator replacements, enabling straightforward installation in many Campbell Hausfeld units that specify this regulator footprint. As a dedicated regulator, it reduces the pressure from the compressor to a user-selected output level, helping to protect tools and downstream components while maintaining consistent performance under varying load conditions. The RE300000AJ is cataloged under Campbell Hausfeld part number RE300000AJ and appears in their repair manuals as the regulator component for multiple compressor lines, underscoring its role as the standard regulatory solution within the company's portable and stationary systems. This replacement part is designed to integrate with Campbell Hausfeld’s standard air-regulation hardware, providing a direct route to restore regulated airflow when a regulator leaks, drifts, or fails, and is suited for workshop environments where reliable pressure control is essential.