Campbell Hausfeld ST073903AV Replacement Filter Element

ST073903AV is an authentic Campbell Hausfeld replacement filter element designed to protect Campbell Hausfeld air compressors by filtering intake air. This 4-micron paper filter element fits into the standard filter cartridge that threads into the cylinder head, capturing fine dust and particulates before they reach the pump. Rated to balance filtration efficiency with airflow, the element supports consistent performance with minimal pressure drop across the filter. The ST073903AV is commonly used with Campbell Hausfeld CI10 pump models and Maxus EX series (EX8401, EX8402, EX8403), as well as HS4000 and HS222201AJ units, making it a typical replacement for FP070000AV-family configurations. Replacing the worn element helps maintain clean airflow and can extend the service life of the compressor between maintenance cycles.