Product review (3 stars): Filter fits, but specs are questionable
Yes, this filter is a lot cheaper than the name brand, and yes, it does fit as promised (at least for the GE MWF filter).  That aside, the quality is questionable.  For one thing, the product doesn't come with specifications on what it filters or how well--the GE OEM model does.  So other than a vague statement on the box that it filters turbidity and chlorine, that's it.  Based on taste of the water, we're not sure it's filtering everything.  And I'm doubtful that it will last as long as the GE version.  Note that it doesn't claim to be an exact replacement for the GE version but rather, "can replace."

I'm also worried about quality control.  Each filter comes in an individual box, and those were falling apart because of weak glue.  Did I mention these are made in China?

We'll see how long these last, but my guess is the per-unit savings will be lost in going through the filters more rapidly, and, as I said, we're not sure the water is being filtered all that well.