Product review (4 stars): nsf53
Seems to work well.

These claim to have  NSF 42/53 approval. Assuming that they are being truthful, that is impressive to have both.

One note! They aren't kidding when they say you need to run 2-3 gallons through these filters when you receive them. This can take a frustrating amount of time to pull off. Not that drinking the water early would hurt you. It's just carbon in the water.