Model 853 Philly Express(TM) Train Horn - 130 Decibels-290/421/548/648Hz

Powerful Sound of a Train Air Horn
4 Trumpets and Mounting Base are Metal Triple Chrome Plated Designed Smaller to Fit Into Engine Compartments
Built-In Heavy-Duty Chrome Plated 12/24V Electric Solenoid Valve Into Base
Requires an On-Board Air System
Recommend Wolo On-Board Air System Model 800)
Sound Output: 90/100psi 130 Decibels / Operating Pressure: 60-110psi
Comes with All Stainless Steel Mounting Hardware
Easy to Install Flex Hose with Brass Air Fitting
Horn Size (LxWxH): 15" x 5-1/2" x 6" / 1/4" Hose Fittings