Product review (2 stars): Do not purchase
The product was delivered on time, however, it does not function as suggested.  I tried to use if on my GE Refrigerator, PFS22ISBSS, and they do not work properly.  After installing the filter, it worked for a 1-2 days and then the flow quickly diminished and did not return to normal.  I eventually tried using a second filter, which worked the same way.  I then tried the bypass valve to determine if it was the fridge or the filters and the water started to flow normally again.  I then purchased a new GE filter and it works perfectly.  These filters do not work properly on this fridge model.  Don't waste your money, get a GE filter.