Desiccant Air Drying System, ISO Class 1, Air Inlet Size 1/2 in, Air Inlet Type NPT, Maximum Flow Rate 25 cfm, Maximum Flow @ 100 psi 25, Maximum Operating Pressure 150 psi, Minimum Operating Temperature 150 Degrees F, Dew Point -40 Degrees F, Filter Rating 0.01 micron, Filter Included Yes, Number of Stages 3. This item has been restricted from sale in the following state (s): []