United Pacific 46151 3 Trumpets "Competition Series" Chrome Train Horn
 
Chrome 3 trumpet train horn, competition series, super loud.
Super loud sound output: 150db +/- 10db.
12V heavy duty electric air solenoid included.
Includes mounting pad & hardware.
Air Pressure: 150 PSI maximum.
Approximate size: 15-1/2" L x 11-3/4" W x 11-1/2" H.