Product review (1 stars): Not the same design as GE filter
As another review said, there is a notch cut out of the filter on the outside ring. There is also a notch missing on the inside ring that prevents it from 'clicking' in correctly. The o-ring is thinner and wider diameter than the original filter has. (I compared these side-by-side and it's obvious just by looking). The combo of all these things = NO seal. The filter leaks no matter what you do. This is not a replacement for GE MWF refrigerators, DO NOT BUY. There were other non-GE replacement filters ('off-brand') made by other companies besides Water Sentinel, and they had the design spot on (I used 5 of the Aqua Fresh brand with zero problem), but apparently that company doesn't make the MWF design anymore. Don't know why Water Sentinel can't get it right.