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: Without, Flow Direction: Right¡úLeft, Digital Pressure Sensor: MP41P-042, Filtration Rating: 5¦Ìm, Branch Port Diameter Code: Check Valve1/4, Shut-off Valve: Without, Port Thread: NPT Thread