Product review (3 stars): They work but beware you may need to trim them a bit to make them fit into your filter holder base.
This is my second pack of 3 that I bought for my Samsung refrigerator.  These do not fit without some modification.  As with the previous pack of these that I bought, I have to shave a bit off of the plastic tabs before these will fit in my filter holder.  With each new filter that I open I have high expectations that it will fit without modifications.  Unfortunately not the case.  With a razor knife I need to trim just a small bit off of the corners of the locking tabs on these filters before they will screw into the filter base.  I never had this problem when using genuine Samsung filters, but the lower cost of these filters makes them much more economical to use.  Once installed they do not leak and they last just as long as the more expensive brands.  I have just come to expect that I need to do this little modification each time I install a new filter.  This problem may be unique to my filter base and you may have no problem at all when installing into yours.  But in case you do, just trim a small bit of the plastic off of the locking tabs on the filter with a razor knife and they will twist right in.  Start by trimming just a tiny amount from the sharp corners of the tabs.  If they still don't fit, keep trimming just a bit more until they do.