This compressed air regulator with filter and pressure gauge provides dry, clean, and pressure-regulated air. By mounting it on compressors or connecting it to compressed air lines and devices such as paint guns and airbrushes, the compressed air passing through it will be purged of dirt and condensate thanks to a fine-fiber filter. This significantly improves air quality and extends tool life. The continuous pressure adjustment is done manually by turning the top wheel, eliminating worries about pressure fluctuations.