Product review (5 stars): Affordable replacement for OEM fridge filters
I wanted to post a review on these filters to clear some things up.  One of the leading negative reviews points out that the openings are different shapes from the original.  This is true, but if the reviewer had taken a moment to look into their filter housing they would realize that this hole shape does not matter.  This is simply an opening for water to flow.  Water doesn't care if it is a square or round hole it is passing through.  If you look at the housing you will see that the filter seals to the housing where the two O-rings are.  The inner hole could be a triangle for all it matters.  The inner hole has no way of creating a leak.

With that said.  The filter has worked well for the past month of so that I have had it installed.  A cheap alternative to OEM filters.  We've all seen how cheap brand name filters can be from refillable pitchers.  This is essentially the same thing but sealed, there is no reason a "cheap" filter should be too hard to believe.