Product review (5 stars): ... is not the lowest profile but the quality is good. fyi
It is not the lowest  profile but  the quality is good. fyi,  I did not use  it for dryer hook up. I had a project for which an aluminum right angle was needed to duct heated air.  The flanges are a little flimsy but the curved 90 degree section is sturdy. Finish is nice, shiny, not spangled like ugly trash can.