I know some people who have well water and they use something like that.
Unfortunately I don’t know that you’re going to get effective filters that have no plastic due to it being too cost effective for a disposable component.
You can’t use paper or cardboard because it’s water permeable, and metal would drive up the price of the filter drastically.
Where I live I’ve got perfectly good tap water, but in general you want a charcoal filter.
https://a.co/d/0tZHtzQ
I know some people who have well water and they use something like that.
Unfortunately I don’t know that you’re going to get effective filters that have no plastic due to it being too cost effective for a disposable component.
You can’t use paper or cardboard because it’s water permeable, and metal would drive up the price of the filter drastically.