Doesn't Fit
This looks like a product well made and packaged with great care. It has been running for a few days but it's hard to tell how effective it is.  In my situation I had only one small area it would work, and it was going to be a tight fit.  I was glad to see the slotted screw holes, they can make installation mush easier except the screw head are too big to take advantage of this feature.  That being said I think I'm going to order a set for the return air plenum
Rating: 4 stars