Product review (1 stars): Stay away!
Edit: Terrible. It always tasted a little off, but I thought it was just me. But then it got progressively worse. After just a few weeks it also began tasting grainy, which is when I was sure it wasn't my imagination and I removed it. Who knows what this unrated, unregulated knockoff was adding to our water? Who knows what I was stupidly letting my daughter ingest? Disgusting, I would have been better off just using the bypass cap and not filtering at all.

I'll only buy GE OEM from now on, even though it's ridiculously expensive.

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Works.

Issues:

1) Took longer to flush out sediment than GE OEM. Not a big deal.
2) There is no evidence it is actually filtering anything to any standard. Not certified. In fact, how do I know it isn't introducing more elements than it's filtering? Especially since we have generally very good tap water quality.
3) Taste seems off? It's okay, but not the same. Although that might be a placebo effect.

I don't think I'll buy again.