Hydro vent

A hydro vent was a type of technology located on refitted vessels.

In 2287, Captain James T. Kirk asked Montgomery Scott how to get to the USS Enterprise (NCC-1701-A)'s turboshaft. Scott told Kirk, Captain Spock and Dr. Leonard McCoy to head down a tunnel and turn right at hydro vent, near the blowscreen, after that they would find the turboshaft.