Product review (4 stars): As described
I needed the extension for this kit and then some, but it definitely got the job done. I ended up needing three extension kits because I live in a condominium. And just as a warning it's not as easy as it might seem. You don't know what is behind your walls and evidently my duct has several 90 angles. It was an absolute PITA the push the entire 48ft through my duct. I swore I won't do it for another year plus.