Air Combination Unit(F.R.L. Set), Components: MAFR401+MAL401, Port Diameter Code: 15A(1/2), Appearance Color: Silver&Black, Type: Standard, Pressure Gauge: Pressure Gauge Manifold(A-MAR401), Drain Valve: Auto Drain Valve(FMRF300), Level Switch: Without, Pressure Sensor: Pressure Sensor(MPS Series), Flow Direction: Left¡úRight, Digital Pressure Sensor: Without, Filtration Rating: 40¦Ìm, Branch Port Diameter Code: T Type Connector Block1/2, Shut-off Valve: Without, Port Thread: Rc Thread