Model 839-858
Cannon Ball Express ® Pro
Lanyard Valve 152 Decibels 307/347/440 Hz

When a truck owner demands an ultra powerful horn, the CANNON BALL EXPRESS PRO TRAIN HORN 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 PRO TRAIN HORN 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 on-board air system provided is designed to produce a large volume of high-pressure air to power the CANNON BALL EXPRESS PRO TRAIN HORN and includes everything necessary for a professional installation. The heavy-duty 12-volt motor of the compressor is balanced to precision, and there are 4 heavy rubber bushings mounted into the base virtually eliminating all vibration. For easy installation there is an extended length stainless steel high-pressure hose that allows the compressor to be surface mounted, the stainless steel hose connects the compressor to the 2.5-gallon metal air storage tank. Other features of the CANNON BALL EXPRESS PRO are; the tank has a built-in pressure switch, manual water drain, pressure gauge, pressure relief valve and brass fittings. Kit comes with mounting hardware, 10 ft. of flexible high-pressure hose and 20 ft. coiled filler hose with quality brass fittings.