Product review (5 stars): Great taste. Don't give yourself a headache looking for substitutions.
We ordered a different generic brand of these trying to save money. They had a very chlorinated aftertaste. We sent them back and ordered the LG replacement filters. From now on I will only order LG.

The question becomes: Do I want to wake up and walk into my kitchen in the morning and not have a perfect tasting cold glass of water to start the day? No, I want it to be perfect every time!