Five-Stage Extended Life Desiccant Air Drying System 1/2 Inlet and 1/2 Outlet. First Stage - 5 micron particulate filter removes water in a liquid form as well as dirt, debris and pipe scale. Second Stage - 01 micron oil removing filter removes oil aerosols and microscopic particles. Third Stage - Desiccant dryer absorbs water vapor from the air, producing a -30?F dew point. Fourth Stage - 3 micron absolute filter filtrates desiccant dust. Fifth Stage - Precision regulator reduces pressure to required level. Max SCFM: 25 . Includes two quart jars of desiccant (ATD-7886). COMBO: with 1 Gallon of Replacement Desiccant 7763D Yes - LEAD AND LEAD COMPOUNDS