Model 837 Cannon Ball Express® 12-Volt 152 Decibels 307/347/440 Hz

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.