Hi i just got twin hadley air horns . Trying find any info out on them if any one know?? got some info from the horn can anyone make any sence out of?
pat no:
4171678
h13720a
1/8-27npt
7/16-24
They are 25" from end to end.
not much to say standard horn you will find on most 18 wheelers… 150 psi max… new around $90 a piece