Home / Products / 12″ Air Horn SKU: 2017 Categories: Exterior & Chassis, Uncategorized Tag: Ambulance Parts Description Description Brass, chrome-plated, Frequency: 392 Hz Related products Whelen 50W Clear Halogen Bulb H50SN12 View Part Hanscom K Backup Camera (Monitor & Bracket) View Part ’19-Current Transit Front Grill Guard View Part Grill Siren View Part