PointZero Airbrush Air Compressor Regulator with Water-Trap Filter Allows the precise delivery of clean, dry air Adjustable pressure control knob locks desired setting in place Small micron brass element filters water and other contaminants into removable catch-bowl Minimizes air pulsations and pressure imbalances from piston-style compressors Airbrush regulator is rated up to 135 PSI; gauge displays up to 100 PSI