"Viking Horns" Brand New, Hi-Powered 3 Trumpet Train Air Horn And Compressor/Tank kit. This Horn system produces a loud low pitch Sound of 152 decibels. Trumpets are metal in powder black color. Will replace your original horn, or can be installed as an auxiliary horn. Comes with a 1.5 gallon air tank, and 12 volt 150 PSI heavy duty maintenance free air compressor. Includes Mounting Hardware, Fittings, Air Tube, Electric Air Valve Solenoid, 0-to-240 PSI Air Gauge, 120/150 PSI Air Pressure Switch, Teflon Tape, Installation Instructions, and a FREE horn button. Ideal for vehicles such as Truck, RV, SUV, Boat, Pick-Up, and many more applications. Horn overall Dimensions: L 19 1/4" x W 18" x H 7.5". 16-1/4" L x 15" W x 11" H , 6-1/4" ea. bell diameter. Air Tank dimensions: 15" L, 7-1/2" H, 5-1/2" diameter. Air compressor dimensions: 9-1/2" L x 4" W x 6-3/4" H.