When a truck owner demands a ultra powerful horn, the CANNON BALL EXPRESS is the one to choose. Gives any 12-volt truck a true train horn sound. Constructed of all metal with three (3) triple chrome plated trumpets. The horn's base is painted steel. Horn comes with all required mounting hardware, 10 foot length of 1/4" nylon high pressure hose and a heavy-duty 12-volt electric solenoid valve.
The Cannon Ball Express requires an on-board air system, recommended models: 840, 858 and 860.

152 Decibels
307/347/440 Hz – Low Range
Horn size: L 16-1/2 in. x W 14-3/4 in. x H 11 in.
Horn output with 90/110 psi: 152 db
Horn construction: All metal, base - painted enamel, trumpets - chrome plated
Electric solenoid: 12 volts / 250 milliamps
Hose type: 1/4 in. O.D.
Air fittings: Brass
Mounting hardware: Stainless steel