Product review (3 stars): 1 out of 2 is not bad
The first filter in the pack worked fine. When it came time to replace it, I popped it out, and went to install the 2nd filter. No matter what I did, I could not get it to lock in place. Not sure why, it looks exactly the same as the first one, which I was able to reinstall. And of course, the return date expired already, so I need to buy new ones and throw this one away.