Product review (4 stars): Does what it says
Purchased this as a replacement for the higher priced OEM filters. These fit fine, although slightly bigger than the Samsung filter. So far appears to be working as well as the original filter. Time will tell if they last as long.

Update:  Seem to last about as long as the OEM filters.  Only issue I have had is that installed a brand new one and the flow of water went to a trickle, almost as if the new filter was clogged and not letting the water flow.  Of course this was the last one in a 3 pack so had been too long to contact Amazon.  Had to trash it and install another one and the flow was back to normal.  Still was like throwing a $20 bill in the garbage.