Durable construction with impact resistant plastic being used for the Dual Tone Air Horns.
Hella Dual Tone Air Horn Kit - 003001651 Replace that weak and tired sounding horn with a powerful horn kit from Hella.The Dual Tone Air Horns are 118 dB loud and feature an air pump, air tubes and twin tone horns. 118 dB loud;Includes air pump, air tubes and twin tone horns;All relays and mounting brackets are included for installation;California Residents: WARNING Hella horns are characterized by their strong, penetrating, concentrated sound..