Air Combination Unit(F.R.L. Set), Port Diameter: 3/4, Bowl Material: PC Bowl(PC), Pressure Gauge: Pressure Gauge Manifold(A-MAR302), Drain Valve: Auto Drain Valve(FMRF300), Flow Direction: Left¡úRight, Digital Pressure Sensor: Without, T-Type Connector Block: T Type Connector Block3/8, Port Thread: Rc Thread