"WOLO Orient Express DD4 Air Horn with Compressor is designed especially for vehicle owners that want powerful train horn sound but have limited open space in the engine compartment. Includes a compressor, so no onboard air tank system is required. Trumpet Horn 4, Adapters Included Yes, Hertz 287/326/356/426, Chrome Plated Yes, Music Book Included No, Dimensions L x W x H in. 18 7/8 x 14 x 4 1/4, Multiple Tone No, Remote Panel Control No, Portable No, Microphone Included No, Mounting Type Roof mount, Compressor Included Yes, Decibel Rating 120, Product Style Train, Horns Included 1, Mounting Hardware Included Yes, No Slip Hand Grip No. Heavy-duty, maintenance-free compressor is included, eliminating the need for a high-pressure onboard air tank system 4 brass triple chrome-plated trumpets for powerful sound Includes relay and hose Comes complete with mounting hardware 18 7/8in.L x 14in.W x 4 1/4in.H"
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