Cannon Ball Express Chrome Train Horns .
Get that true truck train horn sound at 152 decibels with Cannon Ball Express Chrome Train Horns!
Constructed of all metal with three brass, triple-chrome plated trumpets. Two trumpets measure 7-1/2" diameter and one measures 6" diameter. The horn base is chrome-plated metal. Requires an on-board air system with a minimum three-gallon storage tank and 110 PSI. Mounting hardware and 10' of 1/4" nylon high-pressure hose included. Stainless steel fittings. Heavy duty 12-volt electric solenoid. Hook it up to your existing horn button or lever, sold separately. Unit measures 16-1/4"L x 14-3/4"W x 11"H. Solenoid valve included.