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.
Plastic-free verdict: No-contact plastic
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, never sitting in plastic. The only plastic is on the filter elements themselves (a BPA-free "stem saver" and hole plugs that seat the carbon filters), which is the unavoidable cartridge-housing concession every gravity system shares. Base washers are silicone.
Verification: Manufacturer confirmed · reviewed 2026-07-05
What it's made of
| Part | Material | Food contact |
|---|---|---|
| upper chamber (unfiltered) | Stainless Steel (304 / 18-8) | Yes |
| lower chamber (filtered water reservoir) filtered water sits here before dispensing | Stainless Steel (304 / 18-8) | Yes |
| spigot stainless spigot with a ceramic valve, not plastic | Stainless Steel (304 / 18-8) | Yes |
| filter elements (Foundation carbon block) activated-carbon block filter medium; water passes through this | Activated Carbon / Ceramic Filter Media | Yes |
| filter housing / stem saver + hole plugs BPA-free food-grade plastic that seats the filters in the upper chamber; brief contact as water enters the filter | Polypropylene (PP, | Yes |
| 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. Because the reservoir and spigot are steel, the largest volume of filtered water in the category is held plastic-free. 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
- Filter elements still have BPA-free plastic housing parts (category-wide)
- 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