Product review (5 stars): GE MFW Refrigerator Water Filter
The product code matched the old one exactly on the filter and the filter needed to be replaced.  The price was lower than the fridge manufacturer by $30  and the big box stores by $10 and was easily replaced by simply screwing it on.  I was glad to get it at Amazon.  It is amazing what you can get at Amazon and have delivered to you doorsteps.