Vacum Question

I'm getting ready to put my new front bumper on, and I am looking for suggestions as where to mount the what I think is a vacum seal/resivour? ( big black ball on bumper with vacum line going to it?)

Any suggestions or photos would help!

Thanks in advance

I mounted mine to the right fender where it meets the fire wall.

X2 if you meant vacuum reservoir!I mounted mine to the fender brace.