I have an 8\" inline duct fan that was in use for about 3-4 years.....I know the date says 2004, but the store it came from was empty for about 5 years, and its been in my garage for about a year.

its a little dirty, as shown in the photos, but I did not want to take a hose to it, as I do not know if that is the proper way to clean it.

I connected it and it seems to run fine.

these list for close to $400