Air source products are essential components in pneumatic systems, responsible for delivering, filtering, regulating, and lubricating compressed air to ensure stable and efficient operation. Common air source devices include air filters, pressure regulators, lubricators, and combined FRL units. These components help to remove moisture and impurities, maintain consistent air pressure, and prolong the lifespan of downstream pneumatic tools and actuators. With compact design, easy maintenance, and wide compatibility, air source units are widely used in industrial automation, machinery, and manufacturing applications.