Product details:

Experience the low and powerful tone of a tugboat horn with the HornBlasters TUG-37. This single bell horn measures 37 inches and provides a deep, classic brown note sound unlike typical high-pitched air horns. Get ready to make a big impression.Requires 1/2" Air Line
Heavy Duty Black Finish
Pre-Installed 12/24 Volt Air Valve
37" Long for Deep Tone