Product review (3 stars): Easy to install, but wished it was more durable.
My laundry room is in my basement. Dryer is vented through a glass block, basement window. Because the dryer vent is actually built into the glass block, I can only use a specific Deflecto dryer vent cover. Every couple of years, this louvered vent warps and sticks, allowing the louvers to stay open all the time - even when the dryer is off. So, I have to replace this every 1.5 to 2 years. Easy to install - just four screws. You simply need to remove the old cover from the pipe - the Deflecto cover attaches to the pipe with two small plastic teeth. 5 minute job to do by yourself. All of that is okay - I just wish it would last longer. I do have a gas dryer so that may be the problem.