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Give any vehicle the powerful sound of a train air horn with Wolo's NEW PHILLY EXPRESS. The four trumpets and mounting base are metal triple chrome plated and designed smaller to fit into engine compartments that are unable to accommodate a full size train horn.
Built into the horn's base is a heavy-duty, chrome plated 12/24-volt electric solenoid valve. The PHILLY EXPRESS requires an on-board air system, (recommended Wolo on-board air system Model 800). Comes with all mounting hardware.