Brita
Brita is a plastic system, full stop: the pitchers and dispensers are polypropylene and SAN, and even filtered water sits in a plastic reservoir before you drink it. The environmental pitch is about cutting single-use bottles, not about getting plastic out of your water, and only the Elite filter carries microplastics certification at all. We list Brita as context, not as a plastic-free option — there's no plastic-free way to own one.
How clear are their specs?
Brita does name the plastics (polypropylene, SAN) and cites the Elite's NSF/ANSI 401 microplastics certification, but the filter media and housings are otherwise described in filtration-performance terms rather than a full material breakdown.
Products to avoid
Documented so you know what to skip — each still has a full breakdown and sources.