【Product Name】 3/8" NPT Air Regulator with Bracket and Gauge 【Material】Aluminum Alloy Material 【Flow Rate:】19.4 SCFM (550 L /Minute) @ 90 PSI 【Maximum Pressure】0-145psi/0-1.0Mpa【Working Temperature】32～140°F When regulating pressure, pull up the rotary knob and rotate clockwise to increase the pressure and rotate anticlockwise to decrease the pressure