Came out of a room air filter box. I stole the speed control for my plug spinner.
Good for small spray booth or general exhaust fan. Very quiet.
Swap for a couple plugs. Or 20 bucks shipped.
http://i6.photobucket.com/albums/y250/thefishingfreak/Mobile%20Uploads/20150512_071919_zpsubre5ebg.jpg (http://s6.photobucket.com/user/thefishingfreak/media/Mobile%20Uploads/20150512_071919_zpsubre5ebg.jpg.html)

http://i6.photobucket.com/albums/y250/thefishingfreak/Mobile%20Uploads/20150512_071854_zpsgsexprl1.jpg (http://s6.photobucket.com/user/thefishingfreak/media/Mobile%20Uploads/20150512_071854_zpsgsexprl1.jpg.html)