Vixen Horns 150 PSI Heavy Duty Air/Train Horn Compressor with 1/4" NPT Stainless Steel Braided Hose 12V VXC8701 12V Permanent Magnetic Motor Maximum Working Pressure: 150 PSI Duty Cycle: 25% @ 100 PSI Amperage Draw: 18A Flow Rate: 1.1CFM @ 0 PSI