Boroux Legacy Gravity Filter
Stainless-steel gravity dispenser where filtered water sits in a 304 steel lower chamber and pours from a steel spigot with a ceramic valve - the only plastic is in the filter housing.
The verdict: Minimal plastic contact
Both the upper and lower chambers are 304 stainless steel, and the spigot is stainless with a ceramic valve - so the filtered water dwells in steel and dispenses through steel/ceramic. The one plastic in the path is on the filter elements themselves (a BPA-free "stem saver" and hole plugs that seat the carbon filters); water passes through that cartridge housing as it's filtered, which is what lands it at minimal-contact rather than fully no-contact. It's the unavoidable cartridge concession every gravity system shares, and far less plastic contact than a plastic pitcher. Base washers are silicone.
Verification: Manufacturer confirmed
What it's made of
| Part | Material | Water contact |
|---|---|---|
| upper chamber (unfiltered) | Stainless Steel 304 / 18-8 | Yes primary |
| lower chamber (filtered water reservoir) filtered water sits here before dispensing | Stainless Steel 304 / 18-8 | Yes primary |
| spigot stainless spigot with a ceramic valve, not plastic | Stainless Steel 304 / 18-8 | Yes primary |
| filter elements (Foundation carbon block) activated-carbon block filter medium; water passes through this | Activated Carbon | Yes primary |
| filter housing / stem saver + hole plugs BPA-free food-grade plastic that seats the filters in the upper chamber, specific resin unspecified; brief contact as water enters the filter | Plastic other / unspecified | Yes primary |
| base ring / washers | Silicone | No |
A 3-gallon countertop gravity filter in the Berkey mold: pour tap water into the upper stainless chamber, gravity pulls it through activated-carbon Foundation filters into the lower stainless chamber, and you dispense from a stainless spigot. At 3 gallons it holds the most filtered water plastic-free of any pick here. WQA-certified to NSF/ANSI 42, 53, 401, and 372 - the 401 certification covers microplastics reduction.
Pros
- Filtered water sits in and dispenses from stainless steel, not plastic
- Certified to NSF/ANSI 401 for microplastics (and 53 for lead/PFAS)
- Holds the most filtered water plastic-free of any pick here
- No electricity needed; works during outages
Cons
- Newer system (launched 2024) - shorter track record and far less independent testing than ProOne or Berkey/British Berkefeld
- Near-zero mindshare in plastic-free communities, which still name Berkey, British Berkefeld, ProOne, and Ecofiltro - it's known mainly within the Berkey-replacement orbit
- Large countertop footprint
- Slow gravity flow; requires periodic filter priming
- Higher upfront cost than a pitcher
Categories: Water Filters
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://boroux.com/products/legacy-water-filter-system chambers are 304 stainless; stainless spigot with ceramic valve; stem saver/hole plugs are BPA-free food-grade plastic; base parts silicone
- manufacturer https://boroux.com/pages/faq confirms upper and lower chambers and spigot are 304 stainless and filtered water sits in the stainless lower chamber
- review https://waterfilterguru.com/boroux-legacy-water-filter-system-review/ independent review confirming stainless construction and NSF/ANSI 42/53/401/372 certification
Independent reviews
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