The Marshalltown DuoFlex® Compressor Air Filter Kit (FIL309) is an essential maintenance component designed specifically for the DuoFlex® air compressor. Each kit includes four high-quality filters per bag, ensuring optimal performance and prolonged equipment life by effectively trapping dust and debris from the air intake.

These precision-engineered filters enhance compressor efficiency, reduce wear on internal components, and maintain consistent airflow during operation. Ideal for professionals relying on the DuoFlex® system, this kit supports smooth, reliable compressor function and helps prevent costly downtime through timely maintenance.