MettleAir AC3000-N02-1 PK Filter/Regulator/Lubricator with Gauge, 2000 L/minute, 1/4" NPT Model: AC3000-N02 Ports: 1/4" NPT Gauge Port: 1/4" NPT Flow Rate: 2000/L min (70.63 SCFM) Assembly: AF3000 (Filter)/ AR3000 (Regulator)/ AL3000 (Lubricator)