Product review (2 stars): Poor craftsmanship.
If you order this, check all of the clamped/welded seams carefully. The seems at the top on mine was not sealed at all, so if I had installed it as-is, a good deal of the dryer exhaust would have just leaked into the laundry room. It is nothing a couple feet of foil tape can't fix, however I don't think new items should have to be "fixed" before installation.