Product review (4 stars): Did the trick
We had a situation with a dryer in our rental property where the exhaust hose was so smooshed against the wall it took 3 hours to dry a single load of laundry. I saw this product on Amazon and we decided to try it. Installing it was tricky because we had to put it into an existing space, but we made it work and seems to have done the trick with the dryer problems.