Product review (5 stars): Perfect fit for Samsung that took the A/B filter, after removing original filter tray.
Fit perfectly and even has a nice 6 month indicator to stick on the calendar.  One key point  If it does not seem to fit check to see if the original filter was inside of a removable tray.  I had to remove that tray and then this filter fit perfectly with an easy twist.  I found looking into the hole and then at the filter helped me to visualize the mechanism.  I wild guess is that it has to do with A/B filters.