Product review (1 stars): Over the past year I've urchased at least 7 DEFECTIVE Samsung filters.
Purchased 7+ DEFECTIVE Filters!  All of them stopped working between 1 week to 1 month after installation.

A Samsung Repairman came to take a look at my fridge to see if it was the problem or the filters.  He said that THERE SHOULD BE AN EXPIRATION DATE ON THE FILTERS because if they are old, they will stop working after a short while. He installed a new filter that he brought into my fridge and it has been working for the last 5 months now.