Model 839 Cannon Ball Express® Lanyard Valve 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 truck a true train horn sound. Constructed of all metal with three (3) triple chrome plated trumpets and operated by a heavy-duty lanyard valve, included. 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 lanyard valve.
The Cannon Ball Express requires an on-board air system recommended Wolo on-board air system are Models 840, 858 and 860.