We have a rental and not only does it work for us, we are running a 3 month registration and have just used it on about 7 dryers. It's ideal for keeping them in working condition and you don't have to replace them as often. It will also clean your stuff and rid you of lint. This dryer vent cleaner removes lint that may have accumulated in dryer vents over the years to keep your appliances running more efficiently. That's it, works cheap to make your machines work well, buy it.