Pre/After Filter Package Filter Type Particulate Air Inlet Size 3/8 in Air Inlet Type NPT Maximum Flow Rate 35 scfm Maximum Operating Pressure 150 psi Maximum Operating Temperature 150 Degrees F Overall Width 4 1/2 in Overall Height 8 1/8 in Drain Included Yes Filter Bowl Material Aluminum Drain Type Automatic Series NGF (Next Generation Filter) Differential Pressure Indicator Included Yes Filter Rating 0.01 micron