Is Brondell NSF certified?

Yes — but by WQA Gold Seal, not NSF, and the scope varies by model. WQA (Water Quality Association) is one of three ANSI-accredited certifiers, equal in standing to NSF. A 'Brondell NSF certified' search on info.nsf.org returns nothing because Brondell's listings live at find.wqa.org under 'Brondell, Inc.' Per-SKU cert footprints (as of 2026-05-23): Coral UC300 — NSF/ANSI 42, 53, 401, 372 + CSA B483.1. Cypress — NSF/ANSI 42, 53, 401, 372. Capella — NSF/ANSI 42, 53, 58, 401, 372 (the broadest). Circle RC100 — NSF/ANSI 42, 53, 58, 372 — no 401. The Pearl dispenser has no WQA listing. Before trusting any cert claim, check your water quality by ZIP code so the certified scope matches your feed water.

Is Brondell good for PFAS removal?

It depends on the model — and the flagship is the wrong pick for certified PFAS. Certified PFAS reduction lives under NSF/ANSI 401, which covers PFOA, PFOS, and pharmaceuticals (Ibuprofen, Phenytoin, BPA, DEET). Carries 401 (certified PFAS): Capella ($215.99-$269.99), Coral UC300 ($143.99-$179.99), and Cypress ($194.99). Does not carry 401: the Circle RC100 ($359.99-$449.99) — its scope is 42, 53, 58, 372 only. Its RO membrane (~0.0001-micron) mechanically retains PFAS, but that isn't third-party certified. So for certified PFAS at the under-sink RO form, pick the cheaper Capella over the pricier Circle. Beyond Brondell, AquaTru Classic ($475, IAPMO file W-10195) carries 401; most rivals at $200-$400 (APEC ROES-50, iSpring RCC7AK) don't. See filters certified for PFAS for the full list.

How long do Brondell filters last (and how often do you change them)?

It varies by model, with RO membranes lasting the longest. Schedules per the brand: Circle RC100 — RF-20 set (sediment + pre-carbon + post-carbon) every 6 months or 475 gallons (a red LED on the faucet warns you); RF-40 RO membrane every 24 months. Tool-free changes take under 5 minutes; ~$192/year ($160 in odd years for RF-20 only, $240 when the RF-40 is also due). Capella — sediment + carbon block + RO membrane on similar 6-to-24-month cycles. Coral UC300 — Three-Stage Replacement Pack, annual. Cypress — replacement pack, annual. Pearl — HF-25 cartridge every 6 months, with a replacement indicator. Real-world life depends on your water: harder water means 6-month pre-filter swaps; soft water lasts closer to schedule. The RO membranes are the longest-lived and priciest single replacement (~$75-$82 every 2 years).

Is Brondell better than AquaTru or Aquasana?

It depends on what you weight — but watch the cert gaps. Circle RC100 ($359-$449) vs AquaTru Classic ($475) — under-sink vs countertop RO. The Circle wins on form factor, 500 GPD, the Smart Valve (2.1:1 ratio vs traditional 20-24:1), and non-electric operation (works in outages). AquaTru wins on zero install (good for renters) and a broader cert (5 standards vs 4 — it has NSF/ANSI 401 for certified PFAS; the Circle doesn't). Capella ($215-$269) vs Aquasana SmartFlow RO ($199-$299) — both under-sink RO, both with NSF/ANSI 401. The Capella wins on cert breadth (5 standards vs Aquasana's 3 — Aquasana lacks 58 and 372 at the per-listing tier despite being RO), a 1:1 vs ~1.5-2:1 wastewater ratio, and independence vs Aquasana's A. O. Smith parent (NYSE: AOS, bought Aquasana in August 2016 for $87M). Aquasana wins on built-in remineralization (calcium, magnesium, potassium added back to fix the 'flat RO water' taste). See the full AquaTru comparison below.

Does Brondell Circle remove fluoride and lead?

Yes — both are certified on the Circle RC100. It carries WQA Gold Seal under NSF/ANSI 53 for lead and NSF/ANSI 58 for fluoride (at the RO membrane). Independent testing shows 95-98% lead reduction (150 ppb → under 5 ppb) and 85-92% fluoride reduction (4.0 ppm → 0.3-0.6 ppm), matching the brand's '64 contaminants' claim. The Capella and Coral UC300 also carry NSF/ANSI 53 for lead (the Coral adds chloramine reduction). The Pearl dispenser does not — it's a carbon filter for chlorine taste and odor, not lead. See filters certified for lead and filters certified for PFAS for the broader landscape.

What is Brondell's Smart Valve technology?

It's the Circle RC100's water-saving design — and the efficiency gain is real. Traditional RO uses a rigid pressurized tank that resists filling, forcing the membrane to work against back pressure and wasting 20-24 gallons per 1 gallon purified. The Smart Valve swaps in a 1.6-gallon flexible reservoir that builds no pressure as it fills, so the membrane runs efficiently throughout. Independent testing confirms a 2.1:1 wastewater ratio — 10x better than traditional 20-24:1 systems and 30-50% better than modern rivals (3-5:1). The Capella extends this to a 1:1 ratio ('up to 20x greater wastewater efficiency'). For a household using 3 gallons/day, the 2.1:1 ratio wastes ~2,300 gallons/year vs ~26,000 for a 24:1 system — saving ~23,700 gallons and ~$80-$240/year on water and sewer.

Brondell Water Filters

Q: Where are Brondell filters made?

Designed in San Francisco; final assembly undisclosed. Brondell engineers its filters from its San Francisco footprint (PO Box 470085, San Francisco, CA 94147-0085) and emphasizes its local identity (Alameda County Community Food Bank, Yerba Buena California Native Plant Society partnerships). But it doesn't publish component country-of-origin: the RO membranes, sediment and carbon cartridges, housings, 1.6-gallon flexible reservoir, and Smart Valve assembly have no manifests. This matches the industry norm — US-headquartered brands (Aquasana, Pelican, AquaTru) typically use overseas OEM partners while keeping US design. Unlike APEC's explicit 'Designed, Engineered & Assembled in USA' claim, Brondell's silence means buyers can't verify where final assembly happens.

Brondell is a privately-held San Francisco wellness-hardware brand (bidets are its headline category) whose under-sink RO and carbon filters are WQA Gold Seal certified, not listed in NSF's database — the common point of confusion.

Best for

Households already in the Brondell bidet ecosystem who want a matching WQA-certified under-sink RO or 3-stage filter
Buyers prioritizing water efficiency — the Circle RC100's Smart Valve achieves a 2.1:1 wastewater ratio and 500 GPD without an outlet
Households on PFAS-impacted water wanting certified PFAS reduction — the Capella ($215-$269) carries WQA Gold Seal NSF/ANSI 401
Households wanting compact under-sink RO — the Circle RC100 is 60-70% smaller than traditional separate-tank systems
Buyers wanting non-electric, emergency-ready operation — the Circle RC100 runs on water pressure alone (40-120 PSI, no outlet)

Not recommended for

Buyers searching specifically for 'NSF International certified' — Brondell's listings are WQA Gold Seal, not in NSF's certification database
Buyers wanting certified PFAS reduction who pick the Circle — only the Capella carries NSF/ANSI 401; the Circle's is not certified to it
Budget buyers wanting the lowest entry price into certified under-sink RO — the Circle ($359-$449) sits well above APEC ROES-50
Buyers wanting the longest warranty — Brondell offers a 1-year limited warranty, shorter than APEC's 2-5 years and iSpring's 1-2 years
Households needing pitchers, refrigerator, whole-house, faucet-mount, or gravity formats — Brondell does only countertop and under-sink

Mid tier — typically $200–$500

Certs:NSF/ANSI 42, 53, 58, 372, 401
4 SKUs
$69–$449
Parent:None — Brondell Inc.

Certification Reality: What's Actually Tested

This table shows the NSF/IAPMO/WQA-listed certifications for each Brondell SKU we tracked, alongside the contaminants the brand markets but which do not appear on the third-party listing. Green chips are third-party verified; amber chips are marketing claims without a corresponding listing. Every row links to the live certifier database so you can verify the listed claim set yourself.

SKU / Model	Standards held	What’s certified	Brand claims but NOT certified	NSF listing
Brondell Circle RC100 Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter	No active certifications	Chlorine and Chloramine taste-and-odor (NSF/ANSI 42) Lead (NSF/ANSI 53 Health Effects — 95-98% reduction per published independent testing) Mercury (NSF/ANSI 53) Chromium-VI (Hexavalent) and Chromium-III (Trivalent) (NSF/ANSI 53) Cysts (Cryptosporidium, Giardia, per NSF/ANSI 53) Volatile Organic Compounds (VOCs, per NSF/ANSI 53) Total Dissolved Solids (TDS, NSF/ANSI 58 — 93-95% reduction per published independent TDS-meter testing) Fluoride (NSF/ANSI 58 RO membrane stage — 85-92% reduction per published NSF/ANSI 58 testing) Arsenic-pentavalent (NSF/ANSI 58 — 92-96% reduction per published testing) Cadmium, Barium, Copper, Radium (NSF/ANSI 58 RO membrane) Atrazine, Benzene, Chlorobenzene, DCPB, Endrin, Methoxychlor, 2,4-D, Trihalomethanes (THMs) — broader NSF/ANSI 53 / 58 list behind the brand's '64 contaminants' framing Lead-free plumbing material compliance (NSF/ANSI/CAN 372)	PFAS / Forever Chemicals Pharmaceuticals as a general class Microplastics Bacteria / Viruses Beneficial minerals Why these aren’t certified ↓Hide details ↑ PFAS / Forever Chemicals (PFOA / PFOS / Total PFAS suite) — the Circle RC100 isn't certified to NSF/ANSI 401 Emerging Compounds, the standard that covers certified PFAS reduction. The RO membrane mechanically retains PFAS (the ~0.0001-micron pore size blocks the molecules), and Brondell markets the Circle as 'PFAS certified for PFOA and PFOS reduction', but it's not third-party certified to NSF/ANSI 401. For certified PFAS reduction in an under-sink RO, pick the Brondell Capella (which is certified to NSF/ANSI 401) or cross-shop AquaTru Classic ($475, IAPMO NSF/ANSI 401 file W-10195) Pharmaceuticals as a general class — same gap as PFAS; NSF/ANSI 401 covers a defined list of 15 emerging contaminants including specific pharmaceuticals (Ibuprofen, Phenytoin, BPA, DEET, atenolol, estrone, naproxen, trimethoprim, etc.), but the Circle RC100 isn't certified to 401 Microplastics — the Capella's 'over 86 contaminants' explicitly includes microplastics under its NSF/ANSI 401 listing; the Circle's '64 contaminants' doesn't list microplastics the same way. The RO membrane can mechanically retain microplastics, but it isn't certified for them per-contaminant Bacteria / Viruses — the Circle isn't certified to NSF/ANSI 55 UV disinfection (no UV stage in the design). The RO membrane mechanically reduces bacteria and viruses by blocking them at the pore size, but it isn't separately certified to NSF/ANSI 55 Beneficial minerals (calcium, magnesium) — the Circle doesn't remineralize; the RO membrane strips beneficial minerals along with contaminants. For remineralized water, add a separate inline cartridge ($50-$80 add-on) or pick an RO system with built-in remineralization (iSpring RCC7AK at $250 includes alkaline remineralization) The Brondell Circle RC100 is the brand's flagship water filter and one of the more cleanly certified under-sink RO systems in the consumer segment — but its certification footprint is meaningfully narrower than the Capella's, which adds NSF/ANSI 401. The Circle is WQA Gold Seal third-party certified under four NSF/ANSI standards (42 Aesthetic Effects, 53 Health Effects, 58 Reverse Osmosis Systems, 372 Lead-Free Compliance) — equivalent to NSF International or IAPMO R&T listings under the same standards, since WQA is ANSI-accredited to test products against the standards and issue conformance listings. Searches of NSF's certification database at info.nsf.org find no Brondell matches because that database only lists products the NSF International certifier itself reviews. The plain version: the Circle is certified to NSF/ANSI 42 + 53 + 58 + 372 via WQA Gold Seal, and the '64 contaminants' marketing is backed by the scope of those four standards. The main point of confusion is the certifier — Brondell's is WQA, not NSF International. A second point: within the Brondell RO range, the Circle isn't certified to NSF/ANSI 401 emerging-compounds while the Capella is, so PFAS / pharmaceutical reduction is certified on the Capella but only mechanically supportable on the Circle. Independent reviewers (WaterFilterGuru, World Water Reserve, Water Tech Advice) rate the Circle 'Best Overall' for water-efficiency innovation (2.1:1 wastewater ratio vs traditional 20-24:1) and non-electric high-throughput operation (500 GPD without an outlet), with independent TDS-meter testing confirming 93-95% TDS reduction in line with the brand's claims. Read more	View NSF listing
Brondell Capella Brondell Capella (3-stage under-sink reverse osmosis, certified to NSF/ANSI 401) — premium under-sink RO with the broadest certification in the lineup	No active certifications	Chlorine and Chloramine taste-and-odor (NSF/ANSI 42) Lead, Mercury, Chromium-VI, Cysts, VOCs (NSF/ANSI 53 Health Effects) TDS, Fluoride, Arsenic-pentavalent, Cadmium, Barium, Copper, Radium, Selenium (NSF/ANSI 58 Reverse Osmosis Systems) PFAS / Forever Chemicals (PFOA, PFOS, Total PFAS suite — NSF/ANSI 401 Emerging Compounds) Pharmaceuticals — Ibuprofen, Phenytoin, BPA, DEET, atenolol, estrone, naproxen, trimethoprim — under NSF/ANSI 401 Microplastics (NSF/ANSI 401 — explicitly called out in the brand's 'over 86 contaminants' framing) Flame retardants (Capella 'over 86 contaminants' scope) Lead-free plumbing material compliance (NSF/ANSI/CAN 372)	Bacteria / Viruses Beneficial minerals General pesticide / herbicide class Why these aren’t certified ↓Hide details ↑ Bacteria / Viruses — the Capella isn't certified to NSF/ANSI 55 UV disinfection (no UV stage in the design). The RO membrane mechanically reduces bacteria and viruses by blocking them at the pore size, but it isn't separately certified to NSF/ANSI 55 Beneficial minerals (calcium, magnesium) — the RO membrane strips beneficial minerals along with contaminants. For remineralized water, add a separate inline cartridge or pick an RO system with built-in remineralization (iSpring RCC7AK includes alkaline remineralization) General pesticide / herbicide class — NSF/ANSI 53 and 401 cover a defined list of specific pesticides and herbicides, not the whole class as an umbrella The Brondell Capella has the broadest certification in the lineup — WQA Gold Seal under five NSF/ANSI standards (42 + 53 + 58 + 401 + 372), including the NSF/ANSI 401 emerging-compounds certification the Circle RC100 lacks. Within Brondell, the Capella answers AquaTru Classic's NSF/ANSI 401 certification at a much lower price ($215-$269 sale / MSRP vs AquaTru's $475) and in an under-sink RO form rather than AquaTru's countertop RO. The certifier point applies the same way as on the Circle: the Capella's listings are on WQA's find.wqa.org rather than NSF's certification database at info.nsf.org. The difference that sets the Capella apart from the Circle within Brondell is NSF/ANSI 401 — buyers cross-shopping the two under-sink RO options should know the Capella's 401 certification puts PFAS / pharmaceutical reduction on the certified tier, while the Circle's PFAS reduction is mechanically supportable via the RO membrane but not certified to 401. The '20x greater wastewater efficiency' line on the Capella is backed by its 1:1 wastewater-to-clean-water ratio (vs traditional 20-24:1). Read more	View NSF listing
Brondell Coral UC300 Brondell Coral UC300 (under-sink 3-stage carbon, certified to CSA B483.1) — the carbon-tier under-sink SKU between the Pearl countertop and the Capella / Circle RO systems	No active certifications	Chlorine and Chloramine taste-and-odor (NSF/ANSI 42) Lead (NSF/ANSI 53 Health Effects) Mercury, Chromium-VI, Cysts (NSF/ANSI 53) Volatile Organic Compounds (VOCs, per NSF/ANSI 53) PFAS / Forever Chemicals (PFOA, PFOS — under NSF/ANSI 401 Emerging Compounds) Pharmaceuticals — Ibuprofen, BPA, DEET, atenolol, estrone, naproxen, trimethoprim — under NSF/ANSI 401 BPA (Bisphenol-A) — under the brand's emerging-contaminants scope Microplastics (under NSF/ANSI 401) Sediment and Turbidity (NSF/ANSI 42 particulate scope) Lead-free plumbing material compliance (NSF/ANSI/CAN 372) Drinking Water Treatment Systems Canadian Standard (CSA B483.1) — unique to the Coral UC300 in the Brondell lineup	TDS / Fluoride / Arsenic-pentavalent Bacteria / Viruses General pesticide / herbicide class Why these aren’t certified ↓Hide details ↑ TDS / Fluoride / Arsenic-pentavalent — the Coral UC300 isn't certified to NSF/ANSI 58 RO (it's a carbon-block under-sink system, not reverse osmosis). For TDS / fluoride / arsenic reduction under-sink, pick the Capella or Circle RC100 within Brondell (both are certified to NSF/ANSI 58) Bacteria / Viruses — no UV stage in the design; not certified to NSF/ANSI 55 General pesticide / herbicide class — NSF/ANSI 53 covers a defined list of specific pesticides, not the whole class as an umbrella The Brondell Coral UC300 is the carbon-tier under-sink SKU between the Pearl countertop dispenser ($69) and the Capella / Circle under-sink RO systems ($215-$449). Its WQA Gold Seal certification covers NSF/ANSI 42 + 53 + 401 + 372 + CSA B483.1 — notably NSF/ANSI 401 emerging-compounds (PFAS / pharmaceuticals) at the lowest price point in the Brondell lineup that carries 401 certification. The 'over 75 contaminants' claim is backed by the scope of those four NSF/ANSI standards plus the CSA B483.1 Canadian Drinking Water Treatment Systems standard, which is unique to the Coral UC300 in the Brondell lineup. The difference vs the Capella / Circle: the Coral isn't certified to NSF/ANSI 58 RO because it's a carbon-block under-sink system, not reverse osmosis — so TDS / fluoride / arsenic reduction isn't certified on the Coral. For the lowest entry price into certified PFAS reduction within Brondell, pick the Coral UC300 (the only sub-$200 Brondell SKU certified to NSF/ANSI 401); for broader RO performance (certified TDS / fluoride / arsenic), step up to the Capella ($215-$269) or Circle ($359-$449). The certifier point applies the same way as on the Circle and Capella: the listings are on WQA's find.wqa.org rather than NSF's certification database at info.nsf.org. Read more	View NSF listing

Brondell Circle RC100

Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter

Standards held

No active certifications

What’s certified

Chlorine and Chloramine taste-and-odor (NSF/ANSI 42)
Lead (NSF/ANSI 53 Health Effects — 95-98% reduction per published independent testing)
Mercury (NSF/ANSI 53)
Chromium-VI (Hexavalent) and Chromium-III (Trivalent) (NSF/ANSI 53)
Cysts (Cryptosporidium, Giardia, per NSF/ANSI 53)
Volatile Organic Compounds (VOCs, per NSF/ANSI 53)
Total Dissolved Solids (TDS, NSF/ANSI 58 — 93-95% reduction per published independent TDS-meter testing)
Fluoride (NSF/ANSI 58 RO membrane stage — 85-92% reduction per published NSF/ANSI 58 testing)
Arsenic-pentavalent (NSF/ANSI 58 — 92-96% reduction per published testing)
Cadmium, Barium, Copper, Radium (NSF/ANSI 58 RO membrane)
Atrazine, Benzene, Chlorobenzene, DCPB, Endrin, Methoxychlor, 2,4-D, Trihalomethanes (THMs) — broader NSF/ANSI 53 / 58 list behind the brand's '64 contaminants' framing
Lead-free plumbing material compliance (NSF/ANSI/CAN 372)

Brand claims but NOT certified

PFAS / Forever Chemicals
Pharmaceuticals as a general class
Microplastics
Bacteria / Viruses
Beneficial minerals

Why these aren’t certified ↓

PFAS / Forever Chemicals (PFOA / PFOS / Total PFAS suite) — the Circle RC100 isn't certified to NSF/ANSI 401 Emerging Compounds, the standard that covers certified PFAS reduction. The RO membrane mechanically retains PFAS (the ~0.0001-micron pore size blocks the molecules), and Brondell markets the Circle as 'PFAS certified for PFOA and PFOS reduction', but it's not third-party certified to NSF/ANSI 401. For certified PFAS reduction in an under-sink RO, pick the Brondell Capella (which is certified to NSF/ANSI 401) or cross-shop AquaTru Classic ($475, IAPMO NSF/ANSI 401 file W-10195)
Pharmaceuticals as a general class — same gap as PFAS; NSF/ANSI 401 covers a defined list of 15 emerging contaminants including specific pharmaceuticals (Ibuprofen, Phenytoin, BPA, DEET, atenolol, estrone, naproxen, trimethoprim, etc.), but the Circle RC100 isn't certified to 401
Microplastics — the Capella's 'over 86 contaminants' explicitly includes microplastics under its NSF/ANSI 401 listing; the Circle's '64 contaminants' doesn't list microplastics the same way. The RO membrane can mechanically retain microplastics, but it isn't certified for them per-contaminant
Bacteria / Viruses — the Circle isn't certified to NSF/ANSI 55 UV disinfection (no UV stage in the design). The RO membrane mechanically reduces bacteria and viruses by blocking them at the pore size, but it isn't separately certified to NSF/ANSI 55
Beneficial minerals (calcium, magnesium) — the Circle doesn't remineralize; the RO membrane strips beneficial minerals along with contaminants. For remineralized water, add a separate inline cartridge ($50-$80 add-on) or pick an RO system with built-in remineralization (iSpring RCC7AK at $250 includes alkaline remineralization)

The Brondell Circle RC100 is the brand's flagship water filter and one of the more cleanly certified under-sink RO systems in the consumer segment — but its certification footprint is meaningfully narrower than the Capella's, which adds NSF/ANSI 401. The Circle is WQA Gold Seal third-party certified under four NSF/ANSI standards (42 Aesthetic Effects, 53 Health Effects, 58 Reverse Osmosis Systems, 372 Lead-Free Compliance) — equivalent to NSF International or IAPMO R&T listings under the same standards, since WQA is ANSI-accredited to test products against the standards and issue conformance listings. Searches of NSF's certification database at info.nsf.org find no Brondell matches because that database only lists products the NSF International certifier itself reviews. The plain version: the Circle is certified to NSF/ANSI 42 + 53 + 58 + 372 via WQA Gold Seal, and the '64 contaminants' marketing is backed by the scope of those four standards. The main point of confusion is the certifier — Brondell's is WQA, not NSF International. A second point: within the Brondell RO range, the Circle isn't certified to NSF/ANSI 401 emerging-compounds while the Capella is, so PFAS / pharmaceutical reduction is certified on the Capella but only mechanically supportable on the Circle. Independent reviewers (WaterFilterGuru, World Water Reserve, Water Tech Advice) rate the Circle 'Best Overall' for water-efficiency innovation (2.1:1 wastewater ratio vs traditional 20-24:1) and non-electric high-throughput operation (500 GPD without an outlet), with independent TDS-meter testing confirming 93-95% TDS reduction in line with the brand's claims.

NSF listing

View NSF listing

Brondell Capella

Brondell Capella (3-stage under-sink reverse osmosis, certified to NSF/ANSI 401) — premium under-sink RO with the broadest certification in the lineup

Standards held

No active certifications

What’s certified

Chlorine and Chloramine taste-and-odor (NSF/ANSI 42)
Lead, Mercury, Chromium-VI, Cysts, VOCs (NSF/ANSI 53 Health Effects)
TDS, Fluoride, Arsenic-pentavalent, Cadmium, Barium, Copper, Radium, Selenium (NSF/ANSI 58 Reverse Osmosis Systems)
PFAS / Forever Chemicals (PFOA, PFOS, Total PFAS suite — NSF/ANSI 401 Emerging Compounds)
Pharmaceuticals — Ibuprofen, Phenytoin, BPA, DEET, atenolol, estrone, naproxen, trimethoprim — under NSF/ANSI 401
Microplastics (NSF/ANSI 401 — explicitly called out in the brand's 'over 86 contaminants' framing)
Flame retardants (Capella 'over 86 contaminants' scope)
Lead-free plumbing material compliance (NSF/ANSI/CAN 372)

Brand claims but NOT certified

Bacteria / Viruses
Beneficial minerals
General pesticide / herbicide class

Why these aren’t certified ↓

Bacteria / Viruses — the Capella isn't certified to NSF/ANSI 55 UV disinfection (no UV stage in the design). The RO membrane mechanically reduces bacteria and viruses by blocking them at the pore size, but it isn't separately certified to NSF/ANSI 55
Beneficial minerals (calcium, magnesium) — the RO membrane strips beneficial minerals along with contaminants. For remineralized water, add a separate inline cartridge or pick an RO system with built-in remineralization (iSpring RCC7AK includes alkaline remineralization)
General pesticide / herbicide class — NSF/ANSI 53 and 401 cover a defined list of specific pesticides and herbicides, not the whole class as an umbrella

The Brondell Capella has the broadest certification in the lineup — WQA Gold Seal under five NSF/ANSI standards (42 + 53 + 58 + 401 + 372), including the NSF/ANSI 401 emerging-compounds certification the Circle RC100 lacks. Within Brondell, the Capella answers AquaTru Classic's NSF/ANSI 401 certification at a much lower price ($215-$269 sale / MSRP vs AquaTru's $475) and in an under-sink RO form rather than AquaTru's countertop RO. The certifier point applies the same way as on the Circle: the Capella's listings are on WQA's find.wqa.org rather than NSF's certification database at info.nsf.org. The difference that sets the Capella apart from the Circle within Brondell is NSF/ANSI 401 — buyers cross-shopping the two under-sink RO options should know the Capella's 401 certification puts PFAS / pharmaceutical reduction on the certified tier, while the Circle's PFAS reduction is mechanically supportable via the RO membrane but not certified to 401. The '20x greater wastewater efficiency' line on the Capella is backed by its 1:1 wastewater-to-clean-water ratio (vs traditional 20-24:1).

NSF listing

View NSF listing

Brondell Coral UC300

Brondell Coral UC300 (under-sink 3-stage carbon, certified to CSA B483.1) — the carbon-tier under-sink SKU between the Pearl countertop and the Capella / Circle RO systems

Standards held

No active certifications

What’s certified

Chlorine and Chloramine taste-and-odor (NSF/ANSI 42)
Lead (NSF/ANSI 53 Health Effects)
Mercury, Chromium-VI, Cysts (NSF/ANSI 53)
Volatile Organic Compounds (VOCs, per NSF/ANSI 53)
PFAS / Forever Chemicals (PFOA, PFOS — under NSF/ANSI 401 Emerging Compounds)
Pharmaceuticals — Ibuprofen, BPA, DEET, atenolol, estrone, naproxen, trimethoprim — under NSF/ANSI 401
BPA (Bisphenol-A) — under the brand's emerging-contaminants scope
Microplastics (under NSF/ANSI 401)
Sediment and Turbidity (NSF/ANSI 42 particulate scope)
Lead-free plumbing material compliance (NSF/ANSI/CAN 372)
Drinking Water Treatment Systems Canadian Standard (CSA B483.1) — unique to the Coral UC300 in the Brondell lineup

Brand claims but NOT certified

TDS / Fluoride / Arsenic-pentavalent
Bacteria / Viruses
General pesticide / herbicide class

Why these aren’t certified ↓

TDS / Fluoride / Arsenic-pentavalent — the Coral UC300 isn't certified to NSF/ANSI 58 RO (it's a carbon-block under-sink system, not reverse osmosis). For TDS / fluoride / arsenic reduction under-sink, pick the Capella or Circle RC100 within Brondell (both are certified to NSF/ANSI 58)
Bacteria / Viruses — no UV stage in the design; not certified to NSF/ANSI 55
General pesticide / herbicide class — NSF/ANSI 53 covers a defined list of specific pesticides, not the whole class as an umbrella

The Brondell Coral UC300 is the carbon-tier under-sink SKU between the Pearl countertop dispenser ($69) and the Capella / Circle under-sink RO systems ($215-$449). Its WQA Gold Seal certification covers NSF/ANSI 42 + 53 + 401 + 372 + CSA B483.1 — notably NSF/ANSI 401 emerging-compounds (PFAS / pharmaceuticals) at the lowest price point in the Brondell lineup that carries 401 certification. The 'over 75 contaminants' claim is backed by the scope of those four NSF/ANSI standards plus the CSA B483.1 Canadian Drinking Water Treatment Systems standard, which is unique to the Coral UC300 in the Brondell lineup. The difference vs the Capella / Circle: the Coral isn't certified to NSF/ANSI 58 RO because it's a carbon-block under-sink system, not reverse osmosis — so TDS / fluoride / arsenic reduction isn't certified on the Coral. For the lowest entry price into certified PFAS reduction within Brondell, pick the Coral UC300 (the only sub-$200 Brondell SKU certified to NSF/ANSI 401); for broader RO performance (certified TDS / fluoride / arsenic), step up to the Capella ($215-$269) or Circle ($359-$449). The certifier point applies the same way as on the Circle and Capella: the listings are on WQA's find.wqa.org rather than NSF's certification database at info.nsf.org.

NSF listing

View NSF listing

Check Certification for a Brondell Filter

This widget shows the third-party-listed certifications for Brondell SKUs only. Type a model number to filter the list below — every result links to the full breakdown. To search across every brand we track, use the global certification tool.

NSF/ANSI 3724 modelsNSF/ANSI 424 modelsNSF/ANSI 534 modelsNSF/ANSI 4013 modelsNSF/ANSI 582 models

Search Brondell models

RC100
Brondell, Inc
NSF/ANSI 42, 53, 58, 372
View details
UF-15
Brondell, Inc
NSF/ANSI 42, 53, 372, 401
View details
RC250
Brondell H2O+ Capella
NSF/ANSI 42, 53, 58, 372, 401
View details
UC300 Three-Stage Under Counter Water Filtration System
Brondell H2O+ Coral
NSF/ANSI 42, 53, 372, 401
View details

Listings as of Jun 4, 2026.

About Brondell

Brondell's water filters are genuinely certified — by WQA Gold Seal, not NSF, and the cert scope varies by model. It's a privately-held San Francisco company (founded ~2003, attributed to Stephen Scher) best known for bidet seats; water filtration is a secondary line in its 'Flush / Bathe / Wash / Drink / Breathe' wellness range.

The lineup spans five SKUs:

Pearl — countertop carbon dispenser, $69.99 (no WQA listing).
Coral UC300 — under-sink 3-stage carbon, $143.99-$179.99; 'over 75 contaminants' incl. lead and chloramines.
Cypress — countertop 3-stage, $194.99.
Capella — under-sink RO, $215.99-$269.99; 'over 86 contaminants' incl. PFAS, 1:1 wastewater ratio.
Circle RC100 — flagship under-sink RO, $359.99-$449.99; patented Smart Valve (2.1:1 wastewater ratio vs traditional 20-24:1), 500 GPD with no electricity.

Brondell isn't on NSF's info.nsf.org directory — its certifier is WQA (find.wqa.org). WQA is one of three ANSI-accredited certifiers, equal in standing to NSF. Every per-SKU page shows a WQA Gold Seal under the listed NSF/ANSI standards. The catch: the Circle (42, 53, 58, 372) doesn't carry NSF/ANSI 401, but the Capella (42, 53, 58, 401, 372) does — so for certified PFAS the cheaper Capella beats the flagship.

Independent reviewers (WaterFilterGuru, World Water Reserve) rate the Circle 'Best Overall' for efficiency. Independent testing found 93-95% TDS reduction (390 ppm tap → 21-29 ppm), 95-98% lead, 92-96% arsenic, and 85-92% fluoride. The brand is a member of 1% for the Planet.

Founded:Approximately 2003. Brondell Inc. is a privately-held San Francisco-based wellness-hardware company; its About Us page at brondell.com/about-us says the company has 'over 2 decades in the industry' as of 2026, which lines up with a 2003 founding. Industry coverage widely credits Stephen Scher as the founder, with the original goal of bringing modern bidet seats to the US market. The brand's current About Us page doesn't name a founder, so we mark this as estimated rather than confirmed. The original product category was bidet seats and bathroom-fixture wellness products. Water filtration came later as a secondary line within the broader 'Flush / Bathe / Wash / Drink / Breathe' wellness lineup.

Headquarters:San Francisco, California, USA. Brondell Inc. lists its corporate address as PO Box 470085 San Francisco, CA 94147-0085 in the footer on brondell.com. The 94147 ZIP code is the San Francisco Marina District / Pacific Heights area in the city proper, not a Bay Area suburb. The About Us page doesn't break out where the water-filtration products are made. It leans on the brand's local San Francisco identity, citing community-giving partnerships with the Alameda County Community Food Bank and the Yerba Buena chapter of the California Native Plant Society (Earth Day volunteer work at McLaren Park Native Plant Garden in San Francisco's Visitacion Valley).

Parent company:None — Brondell Inc.

Ownership history

Approximately 2003
Brondell Inc. founded in San Francisco, California as a wellness-hardware consumer brand focused on modern bidet seats. Industry coverage widely credits Stephen Scher as the founder, with the goal of bringing modern bidet seats from East Asia (where they are mainstream household fixtures) to the US market (where they had been a niche category). We mark the 2003 Scher founding as estimated because the brand's current About Us page doesn't name a founder; the 'over 2 decades in the industry' line supports the approximate 2003 timeline.
2003-2010s
Brondell expands the bidet-seat line beyond the original Swash family into LumaWarm heated toilet seats and FreshSpa portable-attachment bidets, becoming one of the early category-defining US brands for residential bidet seats. Through this period it sells mainly direct-to-consumer at brondell.com plus Amazon, with growing distribution at major US home-improvement and plumbing retailers.
Mid-2010s
Brondell extends beyond bidets into adjacent home-wellness categories: air purifiers (the Pro / Revive family), shower systems, and kitchen faucets (the Jema line). The 'Flush / Bathe / Wash / Drink / Breathe' wellness framework becomes the brand's positioning, with each pillar covering a distinct home-wellness category. Water filtration enters as the 'Drink' pillar with the first Pearl countertop carbon-block dispenser.
2019
Brondell launches the Circle RC100 under-sink reverse-osmosis system as its flagship water-filtration product. The Circle introduces the patented Smart Valve technology, which hits a 2.1:1 wastewater-to-clean-water ratio (vs traditional 20-24:1) — a 10x efficiency improvement over conventional under-sink RO — plus 500 GPD production without an electrical outlet, a rare combination at this throughput. The Circle establishes Brondell as a credible under-sink RO brand, with independent reviewers (WaterFilterGuru, World Water Reserve, Water Tech Advice) calling it 'Best Overall' for water-efficiency innovation.
Early 2020s
Brondell expands the water-filtration line beyond the Circle RC100 across under-sink and countertop formats: Coral UC300 (under-sink 3-stage carbon, 'over 75 contaminants', $143-$179), Cypress (countertop 3-stage, NSF/ANSI 42 + 53 + 401 + 372), and Capella (premium under-sink RO with NSF/ANSI 401 emerging-compounds certification covering PFAS / pharmaceuticals / microplastics — 'over 86 contaminants', $215-$269). The lineup now spans three tiers: countertop carbon dispenser (Pearl, $69), 3-stage carbon (Coral / Cypress, $143-$194), and under-sink RO (Circle / Capella, $215-$449). WQA Gold Seal third-party certification spans NSF/ANSI 42 + 53 + 58 + 401 + 372 (per-SKU varies).
2024-2026
Brondell operates as a privately-held independent wellness-hardware brand with WQA Gold Seal certification across the multi-tier water-filtration line. Roughly 1,200+ brand-direct customer reviews across the Coral / Cypress / Capella / Circle / Pearl SKUs, at a 4.7-star average as of 2026-05-23. Bidet seats (Swash / LumaWarm / FreshSpa) remain the headline category — water filtration is the secondary 'Drink' pillar within the broader 'Flush / Bathe / Wash / Drink / Breathe' wellness positioning. The brand is a member of 1% for the Planet (donating 1% of annual sales to environmental nonprofits) with ongoing San Francisco Bay Area community-giving partnerships (Alameda County Community Food Bank, California Native Plant Society Yerba Buena chapter).

Brondell Circle RC100 (4-Stage Under-Sink Reverse Osmosis with Patented Smart Valve)

The flagship and most-reviewed Brondell filter. 4-stage under-sink RO (sediment → pre-carbon → RO membrane → post-carbon) in a compact all-in-one case with a 1.6-gallon flexible reservoir.

Certified: WQA Gold Seal to NSF/ANSI 42, 53, 58, and NSF/ANSI/CAN 372 — but not NSF/ANSI 401 (the Capella has it, the Circle doesn't).
Removes: '64 contaminants' — independently tested at 95-98% lead, 92-96% arsenic, 85-92% fluoride, 93-95% TDS (390 ppm tap → 21-29 ppm).
Efficiency: patented Smart Valve uses a flexible reservoir, not a pressurized tank — 2.1:1 wastewater ratio vs traditional 20-24:1 (10x better) and 3-5:1 for modern rivals; 500 GPD with no electricity (40-120 PSI, optimal ~60 PSI); 1-hour refill.
Price: $359.99-$449.99; $399.99 at Home Depot (137 reviews, 4.5-star); $380-$450 on Amazon. 86 brand-direct reviews at 4.8-star.

Brondell Capella (3-Stage Under-Sink Reverse Osmosis with NSF/ANSI 401 Emerging-Compounds Cert)

The broadest cert footprint in the lineup — and the certified-PFAS pick. 3-stage under-sink RO at a 1:1 wastewater ratio ('up to 20x greater wastewater efficiency').

Certified: WQA Gold Seal to NSF/ANSI 42, 53, 58, 401, and NSF/ANSI/CAN 372 — the only Brondell SKU with NSF/ANSI 401, putting PFAS at the third-party listed tier (the Circle lacks 401).
Removes: 'over 86 contaminants' incl. PFAS, microplastics, DEET, flame retardants, and prescription drugs (NSF/ANSI 401 scope).
Price: $215.99-$269.99; 37 brand-direct reviews at 4.8-star. Best for PFAS-impacted water — matches AquaTru Classic's NSF/ANSI 401 cert well below its $475.

Brondell Coral UC300 (Under-Sink 3-Stage Carbon Filtration with CSA B483.1)

The carbon-tier under-sink SKU, between the Pearl dispenser and the RO systems. 3-stage (sediment + pre-carbon + carbon block), with a chrome faucet (separate 7/16-inch hole).

Certified: WQA Gold Seal to NSF/ANSI 42, 53, 401, NSF/ANSI/CAN 372, and CSA B483.1 (the only Brondell SKU with CSA B483.1).
Removes: 'over 75 contaminants' incl. lead and chloramines; carries NSF/ANSI 401, so it certifies PFAS like the Capella but cheaper.
Price: $143.99-$179.99; 220 brand-direct reviews at 4.8-star — the most-reviewed Brondell filter. The most cost-effective certified-PFAS option in the range.

Brondell Cypress (Countertop 3-Stage Filtration)

The countertop version of the Coral UC300 — for renters who can't install under-sink. 3-stage carbon targeting chlorine, heavy metals, and emerging compounds.

Certified: WQA Gold Seal to NSF/ANSI 42, 53, 401, and NSF/ANSI/CAN 372 — carries NSF/ANSI 401 (certified PFAS) at the countertop form factor.
No RO: carbon can't do NSF/ANSI 58, so no certified TDS, fluoride, or arsenic — for those, step up to the Capella ($215-$269) or AquaTru Classic ($475, RO via IAPMO file W-10194).
Price: $194.99; 65 brand-direct reviews at 5.0-star — the highest rating in the lineup.

Brondell Pearl (Countertop Activated Carbon-Block Water Filter Dispenser)

The entry-level dispenser — and the only Brondell filter with no WQA listing. Slim countertop carbon block attaching to most faucets via a diverter valve.

Certified: none — unlike the Coral, Cypress, Capella, and Circle, the Pearl has no WQA Gold Seal listing. Don't assume the brand's cert footprint applies to it.
Removes: chlorine taste and odor, VOCs, turbidity, and bad tastes and odors only — like a Brita Standard / PUR Basic pitcher, but in dispenser form.
Price: $69.99; 6-month cartridge with a replacement indicator; 15 brand-direct reviews at 4.9-star.

Designed in San Francisco; assembly location undisclosed. Brondell engineers its filters from its San Francisco footprint (PO Box 470085, San Francisco, CA 94147-0085), but does not publish component country-of-origin at the SKU level — the RO membranes, sediment and carbon cartridges, housings, 1.6-gallon flexible reservoir, and Smart Valve assembly have no country-of-origin manifests.

This matches the industry norm: US-headquartered brands typically use overseas OEM partners while keeping US design and operations. Unlike APEC's explicit 'Designed, Engineered & Assembled in USA' claim, Brondell's silence means buyers can't verify whether final assembly is in the US.

Which Brondell Filter Is Right for You?

We mapped each Brondell SKU’s NSF-listed certifications against the 10 contaminants people search for most. Where Brondell doesn’t have a certified SKU, we say so.

Lead

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Lead (Brondell).

PFAS

Best pick: Brondell Coral UC300 (under-sink 3-stage carbon, certified to CSA B483.1) — the carbon-tier under-sink SKU between the Pearl countertop and the Capella / Circle RO systems — certified for PFAS (Brondell).

Fluoride

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Fluoride (Brondell).

Arsenic

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Arsenic (Brondell).

Nitrate

Not the right choice if Nitrate is your priority — no certified Brondell SKU for Nitrate. Consider an NSF/ANSI 53-listed filter.

Chromium-6

Not the right choice if Chromium-6 is your priority — no certified Brondell SKU for Chromium-6. Consider an NSF/ANSI 53-listed filter.

Mercury

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Mercury (Brondell).

Atrazine

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Atrazine (Brondell).

Chloroform

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Chloroform (Brondell).

Cysts

Best pick: Brondell Circle RC100 (4-stage under-sink reverse osmosis with patented Smart Valve) — the brand's flagship water filter — certified for Cysts (Brondell).

How Brondell Compares

Brondell Circle RC100 ($359-$449, 4-stage under-sink RO with patented Smart Valve, WQA Gold Seal certified to NSF/ANSI 42 + 53 + 58 + 372) vs AquaTru Classic ($475, 4-stage countertop RO, IAPMO R&T certified to NSF/ANSI 42 + 53 + 58 + 401 + 372)

Feature	Brondell Circle RC100 ($359-$449, 4-stage under-sink RO with patented Smart Valve, WQA Gold Seal certified to NSF/ANSI 42 + 53 + 58 + 372)	AquaTru Classic ($475, 4-stage countertop RO, IAPMO R&T certified to NSF/ANSI 42 + 53 + 58 + 401 + 372)
Format	Under-sink RO — requires saddle-valve install on cold water line + dedicated faucet install at sink countertop; compact 13.8" x 9.25" x 16.5" all-in-one design with integrated 1.6-gallon flexible reservoir; 60-70% smaller footprint than traditional separate-tank under-sink RO	Countertop RO — no plumbing install required; tap-water reservoir manually refilled; push-button dispense from ~1-gallon clean-water tank; occupies ~12-14 inches of countertop space
Daily RO output	500 GPD (gallons per day) production capacity without electricity; 1-hour reservoir refill rate; integrated 1.6-gallon clean-water reservoir	Limited by ~1-gallon clean-water tank with ~3-4 minutes per gallon refill rate (manual tap-water reservoir refill)
Retail price (typical)	$359.99 sale / $449.99 MSRP on brondell.com; $399.99 at Home Depot; $380-$450 on Amazon	$475 on aquatruwater.com and Amazon
Third-party performance cert footprint	WQA Gold Seal certified to four NSF/ANSI standards — NSF/ANSI 42 (Aesthetic Effects), NSF/ANSI 53 (Health Effects: lead, mercury, chromium-VI, cysts, VOCs), NSF/ANSI 58 (Reverse Osmosis: TDS, lead, fluoride, arsenic, chromium-VI, cadmium, barium, copper, radium), and NSF/ANSI/CAN 372 (Lead-Free Compliance). Notably not certified to NSF/ANSI 401 Emerging Compounds	IAPMO R&T certified to five NSF/ANSI standards — file W-10188 (NSF/ANSI 42), W-10193 (NSF/ANSI 53), W-10194 (NSF/ANSI 58), W-10195 (NSF/ANSI 401 Emerging Compounds, including PFAS / pharmaceuticals / BPA), W-14617 (NSF/ANSI/CAN 372). One more standard (401) than the Brondell Circle
PFAS / NSF/ANSI 401 Emerging Compounds cert	Circle RC100 isn't certified to NSF/ANSI 401 — PFAS reduction is mechanically supportable via the RO membrane but not third-party certified to that standard. Within Brondell, the Capella under-sink RO ($215-$269) is certified to NSF/ANSI 401	IAPMO certified to NSF/ANSI 401 (file W-10195) — covers PFOA / PFOS / Total PFAS suite plus pharmaceuticals
Wastewater efficiency	2.1:1 wastewater-to-clean-water ratio (independently verified) via patented Smart Valve technology — 10x more efficient than traditional under-sink RO (20-24:1) and 30-50% better than modern competitors (3-5:1)	AquaTru does not separately disclose a wastewater ratio — countertop RO architecture with integrated tap-water reservoir manages the wastewater stream internally
Install complexity	Requires saddle-valve install on cold water line + dedicated faucet install at sink countertop — typical 1-2 hour DIY install for confident homeowner; not feasible for renters without landlord approval	Zero install — unbox, plug in, fill tap-water reservoir, press dispense button; suitable for renters / apartments / rentals
Electricity required	NO — operates on municipal water pressure alone (40-120 PSI, optimal ~60 PSI); continues to produce filtered RO water during power outages	Standard electrical outlet required (countertop RO with electric pump-and-controls architecture)
Brand corporate context	Privately-held independent consumer wellness-hardware brand operated by Brondell Inc. (San Francisco, CA; founded approximately 2003; bidet seats remain the brand's headline category — water filtration is the secondary 'Drink' pillar within the broader wellness-hardware portfolio)	Operated by AQUATRU, LLC (the IAPMO listing entity); part of the Ideal Living family (parent Ideal Living Management, LLC, Sherman Oaks CA; founded 1999 by Peter Spiegel; sister brand AirDoctor air purifiers)

Format

Brondell Circle RC100 ($359-$449, 4-stage under-sink RO with patented Smart Valve, WQA Gold Seal certified to NSF/ANSI 42 + 53 + 58 + 372)

Under-sink RO — requires saddle-valve install on cold water line + dedicated faucet install at sink countertop; compact 13.8" x 9.25" x 16.5" all-in-one design with integrated 1.6-gallon flexible reservoir; 60-70% smaller footprint than traditional separate-tank under-sink RO