Product review (1 stars): WARNING - DO NOT BUY!!  IT WILL BREAK YOUR FRIDGE WATER LINE!!!!
I used this in my GE Refrigerator that normally takes GE MWF smartwater filters.  The first time I used it, the water came out gray and after 1 glass full, it broke my water supply in the fridge.  Now I am trying to figure out what to do.

When I unplugged it, it had a ton of pressure behind it... my normal GE filter did not.  So I'm not sure what it did, but now I have a dead water line in my fridge.  I am extremely ticked off!!!