When a truck owner demands a ultra powerful horn, the CANNON BALL EXPRESS is the one to choose. Gives any 24-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. The Cannon Ball Express requires an on-board air system. Horn comes with all required mounting hardware, 10 foot length of 1/4" nylon high pressure hose and a heavy-duty 24-volt electric solenoid valve.
The Cannon Ball Express requires an on-board air system recommended Wolo on-board air system are 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: 24 volts / 175 milliamps
Hose type: 1/4 in. O.D.
Air fittings: Brass
Mounting hardware: Stainless steel