VIAIR 200 PSI Ultra Duty Onboard Air System Intended for inflation of tires up to 37 inches or to actuate air horns that require 200PSI Includes the essential components to install an onboard air system: 480C Air compressor, pressure switch, 2.5 gallon air tank, relay, air tank fittings, air line and wiring. 200 PSI maximum working pressure, 1.76 CFM @ 0 PSI Can inflate a 37 Inch Tire from 0-30PSI in 7 minutes and 10 seconds. One Year Manufacturer's defect warranty through manufacturer with receipt. Air tank should be used with a drain cock and pressure release valve.