Rated 4.5 out of 5 by 2
Rated 4 out of 5 by worksbetter OK it's a damper, but a good quality one that I was unable to find locally. Hard to believe the nearest one was 50 miles away. So I ordered it with the fan. Works great and closes easily. Fit in line with 6" ducting.
November 29, 2011
Rated 5 out of 5 by BackSpin Simple and Effective
Was just what I needed to stop the back draft at the kitchen exhaust fan. A real energy saver. In-line installation was easy.
May 19, 2009