Another idea, Ken, depending on the ID of the tubing and the ID of the gromet, you can cut off a piece of a plastic racking cane, fit the hose to one end and put the other end through the grommet. If you get a relatively tight seal on the fermenter lid, this will work. You may have to change the grommet for one that makes a tighter seal. It is cheaper than installing a bulkhead and if it fits tight, it should work.
That said, I do like the bulkhead idea as well.