Used vacuum hose for the steering column release valve used in the Mercury Cougar or Ford Mustang equipped with the tilt / tilt away steering column. Regular vacuum hose can be used to replace this hose if you are missing the original. However, it will not be correct. This nice original FoMoCo hose has the correct ribbing, stripes and comes with the firewall grommet. If you are missing this piece and you want your car to be right, this is a must have.