Product review (3 stars): I guess I was expecting it to be better than that
I tested my water from the tap with my HM Digital TDS-4 pocket size TDS tester meter and my water was 420 ppm.  After filtering through this LG filter, it came out at 380ppm.  I guess I was expecting it to be better than that.  Although that is the only test I've run on it and don't know chemically what it is filtering.  The water tastes fine after going through the filter but then it doesn't taste bad coming from the faucet so I can't judge that too effectively.