Product review (4 stars): Why you should get original Samsung filter.
Original Samsung filter is better. We have tried others, they a lot of issues:
1) Don't fit well.
2) Half the water flow rate - you have to wait for ages to fill up a bottle.
3) Lasted only half as long as the original.

That all said, it could have been cheaper. So much a utility - should compare with external (more sophisticated) filtering in cost.