MPC B1 (0419) 4 Trumpet Train Air Horn Kit, Fits Almost Any Vehicle, Truck, Car, Jeep or SUV Chrome Quad Compact Air Horn (Dimensions: 13.75"L x 7"W x 7"H) w/ 12v Electronic Solenoid All-in-one Air System w/ 110 PSI Compressor & 3 Liter Air Tank (Dimensions: 15.75" L x 5.25" W x 6.0" H) Kit includes a pressure switch (85 PSI on/105 PSI off), 12 ft of 1/4" air line, push button switch. Wiring kit: 12 feet of 10 gauge power wire, 15 feet of 20 gauge power wire, 20 amp fuse and fuse holder, Assorted crimps and wire connectors, Zip ties. *The compressor in this kit MUST be installed in a clean and dry location.