Product review (1 stars): Popped out on it's own!
I thought this filter was fine until it popped out on it's own last night, leaving a pool of water.  Thank goodness it wasn't more serious, but these filters are too expensive to not be satisfactory.  Looking at the other concerns expressed in these reviews, I've decided to ONLY purchase the PUR brand in the future and found it on another website (Jet.com). I also found it on Amazon.  I'll also always purchase 2+ at a time to make sure I have a back up if needed.