Product review (5 stars): perfect fit
I was concerned about buying this filter online, since it does not look exactly like the one I currently had in my older fridge.  I was pleasantly surprised.  I had purchased the adapter, just in case, but my old filter came off with a quarter turn, and the new GE MWF Filter when back on in two seconds.  No need for the adapter.

Remember to fill the new filter with water before installing it, so you don't get a lot of water spitting at you when you fill your first glass of water.  I also filled a few glasses of water before we used it for drinking.  Just to clear out the lines.  It took a few hours to cool down, but by evening it was cold.

Great filter.  I would highly recommend this supplier and item.