Product review (3 stars): It's a water filter.  What do you want me to say?
At some time the greedy refrigerator manufacturers decided selling you a new refrigerator every 10 to 20 years wasn't enough.  First came selling you a maintenance agreement.  When enough of the public wised up to that rip-off, the manufacturers took a clue from other product manufacturers and created a consumable, the water filter (almost entirely unnecessary unless your water quality is poor), that must be replaced every few months (Silly me.  I thought food was the consumable for a refrigerator).  Some were consumer conscious enough to offer a bypass (that you often had to buy but it was at least a one time expense only) that made the filter no longer necessary.  My new refrigerator's ice maker won't work without a filter and no bypass is offered.  So I'm buying filters now, though only when absolutely necessary, i.e., the old one is completely clogged and water will no longer flow through it. No aftermarket filter is available (yet, I hope) so I'm stuck with buying the manufacturer's filter.  What should I say about it?  It fits and water flows through it.  For these reasons I give it three stars.  Because the manufacture requires one at all, and even at Amazon's price it's rediculously expensive, I can't give it a higher rating.