The first stage is some kind of sediment filter, either sand, ceramic, or polypropylene. The second and third stages are usually both activated carbon.
> Do they really even remove anything?
Yes. There are measurement standards for this. All of the major brands provide independent lab analysis data sheets. For instance: https://www.brondell.com/content/Coral_UC300_PDS_092821.pdf
> It’s like a glorified Brita filter
Brita also provides performance datasheets for their filters. https://www.brita.com/assets/23601607167498ba405a22f7692b3b8...
> Think about it...
It sounds like you have not yet learned about the NSF/ANSI testing standards for water filtration. Today is your lucky day my friend: https://www.nsf.org/consumer-resources/articles/standards-wa...
The first stage is some kind of sediment filter, either sand, ceramic, or polypropylene. The second and third stages are usually both activated carbon.
> Do they really even remove anything?
Yes. There are measurement standards for this. All of the major brands provide independent lab analysis data sheets. For instance: https://www.brondell.com/content/Coral_UC300_PDS_092821.pdf
> It’s like a glorified Brita filter
Brita also provides performance datasheets for their filters. https://www.brita.com/assets/23601607167498ba405a22f7692b3b8...
> Think about it...
It sounds like you have not yet learned about the NSF/ANSI testing standards for water filtration. Today is your lucky day my friend: https://www.nsf.org/consumer-resources/articles/standards-wa...