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.
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
Common questions
Does the Boroux Legacy Gravity Filter have plastic in it?
Yes. On the Boroux Legacy Gravity Filter, the filter housing / stem saver + hole plugs are plastic and sit in the water path. The rest of what touches your water is stainless steel and activated carbon.
What is the Boroux Legacy Gravity Filter made of?
Part by part, the Boroux Legacy Gravity Filter is: upper chamber (unfiltered) — stainless steel; lower chamber (filtered water reservoir) — stainless steel; spigot — stainless steel; filter elements (Foundation carbon block) — activated carbon; filter housing / stem saver + hole plugs — plastic; base ring / washers — silicone.
Does the Boroux Legacy Gravity Filter have silicone in it?
Yes — the base ring / washers are silicone on the Boroux Legacy Gravity Filter. They are seals rather than surfaces your water sits against, which is stainless steel and activated carbon.
Where is the Boroux Legacy Gravity Filter made?
The Boroux Legacy Gravity Filter is made in the USA.
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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