Product review (5 stars): fits in the samsung twin cooling plus fridge/freezer model #RF263BEAESR
This was the perfect replacement for an old samsung filter that we had in our fridge. It was easy to replace (just unscrew the old and screw in the new) and created fresh, clean tasting water immediately (after running the recommended 10 gallons through the filter). I'm very glad I got the 2 pack to be prepared for the next time I need to replace the filter.