No pic, but it is a prebent tube that connects to the driver side of the intake manifold and connects to the left side fuel rail or thereabouts into a round cannister that is laid on its side. The entire thing is probably 8 inches long. Has a boot on both ends of the tube. Pcv, ccv???

 

Year, make, & model would be helpful. Pic also.

 

I figured it out. Fuel pressure regulator vacuum line.

Thx.