Product review (5 stars): Work perfectly for a fraction of the cost of the Samsung brand.
When I originally purchased this filter I read some reviews talking about them not fitting correctly or working right in their fridge, but I decided to give one a try and see if I got lucky.  I was happily surprised to find that it fit in my Samsung fridge just fine and has never leaked.  And I know from my portable water tester that it's most certainly filtering the water, although with Denver Water, the difference between readings is narrower than most would get.  I was pleased enough that I ordered two more and will continue to do so as long as they keep performing like they have so far.