Product review (4 stars): you will have the perfect filter cup
It does exactly what it is supposed to do and fits perfectly. However, we have to buy a new one every 1-2 months because it cracks due to freezing. I know that it is because of my refrigerator, but why isn't this meant to expand if something gets frozen in it? If you can make it expand when the water freezes inside, you will have the perfect filter cup!