Air Combination Unit(F.R.L. Set), Components: MAFR401+MAL401, Port Diameter Code: 10A(3/8), Appearance Color: Silver&Black, Type: Standard, Pressure Gauge: Pressure Gauge(PG-20), Drain Valve: Auto Drain Valve(FMRF300), Level Switch: With Level Switch(MLF400), Pressure Sensor: Pressure Sensor(MPS Series), Flow Direction: Right¡úLeft, Digital Pressure Sensor: MP41P-022, Filtration Rating: 40¦Ìm, Branch Port Diameter Code: Check Valve3/8, Shut-off Valve: MVHR-400-3H(Manual Type), Port Thread: NPT Thread