MettleAir AW3000-N03-1PKD Automatic Drain Air Filter/Regulator with Gauge/Bracket, 2000 L/minute, 3/8" NPT Model: AW3000-N03 Ports: 3/8" NPT Gauge Port: 1/8" NPT Rated Flow: 2000/L min (70.63 SCFM) Bowl Material: Polycarbonate with Metal Cover