Product review (5 stars): Well worth it.
I have ordered this filter for my last 4 filter replacements in my fridge.  I keep one in reserve and each time I need to replace one, I just order a new one.  They work just as well as the name brands and are MUCH cheaper.  My local appliance store wants $50 for the same sized filter and I can get it here for $20.  It doesn't calculate a math genius to calculate the savings not to mention the convenience.