Desiccant Filter/Dryer ISO Class 2 Air Inlet Size 1/2 in Air Inlet Type NPT Maximum Flow Rate 40 cfm Overall Length 21 3/8 in Overall Width 4 in Maximum Flow @ 100 psi 40 Maximum Operating Pressure 120 psi Dew Point -30 Degrees F Filter Rating 0.4 micron Filter Included Yes Number of Stages 5 Air Outlet Size 1/2 in Air Outlet Type NPT Application Dry Air Bowl Capacity 3.4 lb Bowl Guard Included Yes Bowl Material Metal Bracket Kit Included Yes Desiccant Material Silica Gel