Product review (1 stars): DO NOT BUY!
Purchased this item despite misgivings, due to some poor reviews. They were correct! Don't waste your time or money! I must admit I was too lazy to go to HD or Lowes. I thought it would be a time saver. No way! The old duct was nicer, amd put back on, after my husband attempted the switch. (I switch every so often to be sure the vent is clean, no dents etc.) I don't want to go into the detail of what I heard coming, from the laundry room, while he was working on it.  Suffice to say, he should have headed back to church, after the #@$#  language he spewed from his mouth! Very naughty!