Product review (5 stars): High-Quality Filters At A Fraction Of The OEM Prices
I have been using this brand of replacement water filters for a few years and am very pleased with them.  They fit as they should and they do a great job filtering the water.  I had a device that tested the amount of particles in the water and tested these filters out a couple of years ago and was pleased that the water coming through these was more "pure" than any of the bottled waters that I had tested.

Overall, don't be afraid that these are not made by your fridge manufacturer, they work just as well at a fraction of the cost.  Highly recommended.