Product review (5 stars): Flat Dryer vent
This is the perfect solution and was so easy I did it myself in about 15 minutes.  Now I have more room in my tiny laundry room and the machines line up (instead of my dryer sticking out about 8 inches farther than my washer).  Look no further - this is it - great price too, adjustable - Can't say enough!  Ladies - you can do it!