Product review (5 stars): Great Product! with reservations . . .
I wondered if these would work OK since they were so cheap compared to our usual filter.  Well, they worked great (according to my wife) and we will be buying them from now on from this seller!  We give them 5 stars!
I do have a slight revision:  Apparently these filters have a horrible odor for the first couple of days of use.  I just found this out when I came into the room just after a change.  "What is that terrible smell?"  "Oh, just the new filter; it will be OK in a day or so."  Wow!  Maybe 5 stars is a bit much.