Product review (4 stars): Works great, but you have to get leverage to push the thing hard enough to get it seated.
I have only just put one of these in my Frigidaire tonight. At first I could not get it to fit, it slid most of the way in and then clearly hit the back in such a way that it seemed like it wasn't going to work (stuck out 3/4" and water didn't flow). I checked it against the OEM filter I had just removed and it all seemed to be near exactly the same, I tried a couple more times with no luck and then decided to apply a bit more pressure and then it snapped half way into place... I then push a bit more and it went all the way in and I was able to start using it. I ran water through for about 3 to 5 minutes. Water tastes the same and it seems to work exactly the same. Gave it 4 stars because of the extra effort required to get into place. The OEM versions take a tiny bit of pressure to get seated and to get the button to snap in, but this thing took what felt to me as just at the edge of "I'm going to break it if I press any harder."