Product review (4 stars): Great Replacement
This filter fits perfectly and after following the instructions of making an initial flushing run, it appears to work perfectly.

A number of reviewer mentioned "black sediment"  with unsatisfactory performance.  This appears to be a carbon block filter and the black sediment means that they can be damaged in manufacturing or shipping.  It is easy to check for this before installation. simply hold the filter firmly so that it will not slip out of your hand and move it back and forth.  If something feels loose or shifting, in all likely hood, the block is damaged.  This can happen to any brand filter and if this is the case, return it because you are going to get black carbon particles as the filter breaks down (I am a retired engineer for a faucet company that had water filtering products in its product line).

I plan on buying this filter again because the price was great compared to the original factory filters, but there is one thing to look for.  I did not notice if this filter is NSF (National Sanitation Foundation ) certified or not.  These are the guys that act like UL for product certification, testing, auditing of products.  NSF certifies products that come into contact with drinking water, such as plumbing components, water treatment chemicals and drinking water filters to name a few things that they do.  NSF makes sure that claims of products like filters remove what they claim such as cysts, chlorine or other stuff, I don't know the specs for this filter and that's why I gave it four instead of five stars.