1 of 5 parts have unknown materials. We score only from captured evidence and never guess a material, so unknown parts count against the score and lower our confidence. If a seller confirms these materials, the score changes.
Where to buy
Parts & evidence
| Part | Material | State | Evidence |
|---|---|---|---|
| filter core | carbon-based granular media | non-plastic | “proprietary carbon-based granular media inside the core of the filter” listing ↗ |
| housing | · | unknown | “ProOne Gravity System including the ProOne G3.0 Ceramic Gravity Countertop Water Filter and stainless steel housing” listing ↗ |
| outer ceramic shell | ceramic | non-plastic | “Infused bacteriostatic outer ceramic shell” listing ↗ |
| rack | stainless steel | non-plastic | “stainless steel rack” listing ↗ |
| spigot | stainless steel | non-plastic | “Includes stainless 304 spigot” listing ↗ |
Seller links may be affiliate links. Disclosure. We state observed evidence, not verdicts. See the scoring rubric.