Free Air Delivery: 400 cfm Rated Working Pressure: 150 psi Operating Pressure Range: 80 to 175 psi Engine Model: Cummins QSF38 4-cylinder turbocharged diesel Engine Power Output: 130 hp Emissions Certification: EPA Tier 4 Final compliant requiring diesel exhaust fluid Compressor Mechanism: Rotary screw design with a premium asymmetric air end Fuel Tank Capacity: 65 gallons for extended operating shifts Discharge Valves: Two 3/4-inch service valves for tool hookups Chassis Layout: DPQ highway towable frame package with a heavy duty running gear assembly Sound Level: Enclosure designed to meet strict EPA noise regulations for work crews