Heavy Duty True Diaphragm Mini Regulator with Gauge and Water Trap Filter, Fits Airbrush Compressors Improve your Airbrushes Performance by using this Regulator for Accurate Moisture-Free Airflow Provides the user full control of operating air pressure Precise Adjustment of Airflow: Regulated air up to 100 PSI Water Trap Filter: Ensures clean dry air and has an easy release drain valve Reduces Air Pulsation: Minimizes airflow fluctuations