Product review (1 stars): DESIGN FLAW
I'm only giving this one star because I can't give it no stars.  There is a design flaw with this filter, as it does not seal completely.  Both filters in my 2-pack have the same problem.  After replacing the PUR filter that came with my KitchenAid fridge and following the flush procedures, the filter is not functioning properly.

There is a leak that allows air to get sucked into the line so water comes out cloudy and the noise is insanely LOUD!!  You can hear the air leak when filling a glass, and after over 20 gallons of water flushed through both filters, I've given up.  I replaced these with the original PUR filter, and will be ordering more of the PUR filters.  They're $150, but worth it because they're QUIET when in use.

If you need these size filters, I'd STRONLY recommend looking at the PUR or knock-offs.