Product review (5 stars): Yep, that's what I needed.
Does what it is supposed to do - better than the stock part actually.  This version has a larger surface to get a wrench on it than the original part did which makes it a bit easier to work with.  Also the compression fitting doesn't have the removable clip that the original had.  The redesign makes for a much more positive connection with the 1/4" tube.