Product review (1 stars): Please don't buy this - does not filter and worsens the situation.
This is a terrible filter. We flushed out the system for over 4 gallons after installation, as recommended. Not only does it fail to filter out sizeable ( visible to the naked eye) particulate matter, but the taste of the water is atrocious. I normally don't leave negative reviews, but considering this is a drinking water filter - I think it's only responsible to forewarn others who are considering a purchase. Don't do it.