It starts with your tap

What’s actually in your water?

Enter your ZIP. We pull your utility’s real EPA testing, grade each PFAS against the health-based limit (with the date + the basis), then show the filter that handles what your water carries — and what still slips through.

Your utility’s real measured PFAS (EPA UCMR5), sourced & dated
Non-detects shown honestly — never a guessed number
No sponsored rankings, no upsells

See my report ↓ Search the Registry

Source: EPA UCMR5 (2023-2025) + the EPA health-based PFAS limits

Try: 07102 Newark 45202 Cincinnati 48503 Flint 28401 Wilmington

How a filter actually works

A good filter catches a lot — but not everything.

In general, here is what a multi-stage cartridge removes at each stage — and what needs reverse osmosis or a softener instead. Your exact water report (by ZIP) is coming next.

✓ A certified NSF-53 filter catches

Sediment & rust Chlorine & taste Lead Cysts Some VOCs

⚠ Slips through (needs more)

Nitrate · Arsenic · Fluoride→ reverse osmosis

PFAS→ certified PFAS filter or RO

Hardness→ a softener

General guidance — not a reading of your specific utility. The by-ZIP water report is the next release.

The independent registry

Don’t take the box’s word. Search the record.

Every certification, cross-checked against the NSF & WQA listings. We show what’s actually listed — not what the label implies.

Filter Certification Registry

Search any brand, filter part number, or contaminant and see what the official NSF / WQA certification record actually shows -- versus what the box implies. We read 68 filter lines and the NSF/IAPMO/WQA listings so you can verify before you buy.

How to read this: don't take the box's word -- this is what the certification record shows.

Listed On the official NSF (or WQA Gold Seal) certification record.
Select SKUs Listed for lead, but only on specific premium SKUs -- not the whole line.
Via IAPMO/WQA Certified by IAPMO R&T or WQA (legitimate) rather than listed by NSF.
Implied only The box implies the claim, but we found no listing on the record -- verify the model.
Not on record No published certification claim found (often a sediment / RO-stage element). Not the same as "fails".

No filter in this registry holds a verified NSF/ANSI P473 (PFAS) listing as of 2026-06-24. PFAS-reduction wording you see on a box is not the same as a certified P473 listing -- search "PFAS" below to see which products only claim it, and verify any claim at info.nsf.org.

Filter	Type	NSF 42taste/odor	NSF 53lead	NSF 401emerging	PFASP473	Certifier / record
AquaCrest aftermarketAquaCrest (aftermarket 'compatible' refrigerator filters)AquaCrest	Refrigerator	Listed	Select SKUs	--	Not on record	NSF International (DWTU listing) -- select SKUs What the record shows AquaCrest: NSF 53 (lead) on SELECT SKUs only. NSF-listed; NSF 42 broad, NSF 53/401 on the EFF-6002S-6049S series only. No P473. The box may say it replaces a lead-certified OEM filter -- that holds ONLY on the specific SKUs NSF-listed for 53. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Glacier Fresh aftermarketGlacier Fresh (aftermarket 'compatible' refrigerator filters)Glacier Fresh	Refrigerator	Listed	Implied only	--	Not on record	NSF International -- 42 only What the record shows Glacier Fresh: NSF 42 (taste/odor) only -- no verified lead reduction. NSF-listed to 42 only; the brand's 53/lead claims are NOT NSF-verified. As of 2026-06-24 we found no NSF 53 (lead) listing for this brand's standard line; treat any on-box lead claim as unverified until you confirm the exact model. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
ICEPURE aftermarketICEPURE (aftermarket 'compatible' refrigerator filters)ICEPURE	Refrigerator	Listed	Via IAPMO/WQA	--	Not on record	IAPMO R&T (not NSF-listed for lead) What the record shows ICEPURE: Lead claim via IAPMO/WQA only -- NOT NSF-listed. NSF+IAPMO 42/372 base; NSF 53 NOT held -- 53 only on PLUS/PRO via IAPMO. No P473. Its lead claim is certified by IAPMO/WQA (legitimate) rather than listed by NSF and only on the premium (PLUS/PRO) SKUs. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Instapure aftermarketInstapure (aftermarket 'compatible' refrigerator filters)Instapure	Refrigerator	Implied only	Implied only	--	Not on record	none on the public record What the record shows Instapure: No verifiable certification listing. Not in the NSF DWTU database; IAPMO-claimed, unverified. We could not verify this brand's certification in the NSF or IAPMO/WQA public records as of 2026-06-24. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Mist aftermarketMist (aftermarket 'compatible' refrigerator filters)Mist	Refrigerator	Listed	Select SKUs	--	Not on record	NSF International (DWTU listing) -- select SKUs What the record shows Mist: NSF 53 (lead) on SELECT SKUs only. NSF-listed; NSF 42 line-wide, NSF 53 on limited models. The box may say it replaces a lead-certified OEM filter -- that holds ONLY on the specific SKUs NSF-listed for 53. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Other long-tail 'compatible' brands aftermarketLong-tail aftermarket brands seen once or twice in the studySwift Green, Filters Fast PH21700, AquaFresh, Filterlogic, Best Choice, PureH2O / Filters Fast PH21500, Aqua Fresh, Clear Choice	Refrigerator	Claimed	Claimed	--	--	varies / often unlisted What the record shows These brands (Swift Green, Filters Fast PH21700, AquaFresh, Filterlogic, Best Choice, PureH2O / Filters Fast PH21500, Aqua Fresh, Clear Choice, Maxblue, GlacialPure EPTWFU01, MMFILTER, SpiroPure) appear once or twice in the aftermarket study. We did not individually verify their certifications -- assume a 42 baseline and treat any lead claim as unverified. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Pureline aftermarketPureline (aftermarket 'compatible' refrigerator filters)Pureline	Refrigerator	Via IAPMO/WQA	Implied only	--	Not on record	IAPMO/WQA -- 42 only (not NSF-listed) What the record shows Pureline: NSF 42 (taste/odor) only -- no verified lead reduction. IAPMO 42/372 only -- no NSF 53/lead reduction (372 is a lead-free MATERIALS standard, not lead reduction). As of 2026-06-24 we found no NSF 53 (lead) listing for this brand's standard line; treat any on-box lead claim as unverified until you confirm the exact model. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
PurePlus aftermarketPurePlus (aftermarket 'compatible' refrigerator filters)PurePlus	Refrigerator	Via IAPMO/WQA	Via IAPMO/WQA	--	Not on record	IAPMO R&T (not NSF-listed for lead) What the record shows PurePlus: Lead claim via IAPMO/WQA only -- NOT NSF-listed. IAPMO-certified to 42/53/401; NOT NSF-listed. Its lead claim is certified by IAPMO/WQA (legitimate) rather than listed by NSF. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Tier1 aftermarketTier1 (aftermarket 'compatible' refrigerator filters)Tier1	Refrigerator	Listed	Select SKUs	--	Not on record	NSF International (DWTU listing) -- select SKUs What the record shows Tier1: NSF 53 (lead) on SELECT SKUs only. NSF-listed; NSF 42/53/401 on select refrigerator models. The box may say it replaces a lead-certified OEM filter -- that holds ONLY on the specific SKUs NSF-listed for 53. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Waterdrop aftermarketWaterdrop (aftermarket 'compatible' refrigerator filters)Waterdrop	Refrigerator	Listed	Select SKUs	--	Not on record	NSF International (DWTU listing) -- select SKUs What the record shows Waterdrop: NSF 53 (lead) on SELECT SKUs only. NSF-listed; NSF 42 broad, NSF 53/401 on ~107 of ~555 listed SKUs (Waterdrop Plus). No P473. The box may say it replaces a lead-certified OEM filter -- that holds ONLY on the specific SKUs NSF-listed for 53. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LT120F (Fresh Air / air-purifying filter)LT120F, ADQ73214404, ADQ73214403, ADQ73214402, ADQ73334008	Air	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Brita OEMBrita Elite / Longlast+ (OB06)OB06, Brita Elite Blue Filter, Longlast+ (rebranded Elite)	Pitcher	Mfr-stated	Mfr-stated	Mfr-stated	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Brita OEMBrita Standard / Original (OB03)OB03, 35557, Brita Original White Filter (6-pack 36391)	Pitcher	Mfr-stated	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Brita OEMBrita Stream (Filter-As-You-Pour)Brita Stream Filter (gray)	Pitcher	Mfr-stated	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LifeStraw OEMLifeStraw Home Pitcher Filters (2-part: Membrane Microfilter + Carbon/Ion-Exchange)LifeStraw Home Membrane Microfilter, LifeStraw Home Activated Carbon + Ion Exchange Filter	Pitcher	Claimed	Claimed	Claimed	Claimed	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
PUR OEMPUR PLUS Pitcher Filter (PPF951K)PPF951K, PPF951K1 (1-pack), PPF900Z (older family), RF-9999, RF9999	Pitcher	Mfr-stated	Mfr-stated	Mfr-stated	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Bosch OEMBosch UltraClarity (standard) 644845 / REPLFLTR10 / 11034152644845, 9000077104, 9000077095, 9000077096, 9000194412, 9000225170, 11034152, 11006598	Refrigerator	Mfr-stated	Mfr-stated	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Bosch OEMBosch UltraClarity Pro BORPLFTR50 / BORPLFTR55 / REPLFLTR55 / 1103253111032531, 11025825, 11032518, 12033030, 12028325, 11041954, 11050659, BORPLFTR50	Refrigerator	Mfr-stated	Mfr-stated	Mfr-stated	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 1 (EDR1RXD1)W10295370A, W10295370, P4RFWB, EDR1RXD1, Kenmore 9081, Kenmore 46-9081, Kenmore 469081, Kenmore 9930	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 2 (EDR2RXD1)W10413645A, W10413645, FILTER 2, EDR2RXD1, Kenmore 9082, Kenmore 46-9082, Kenmore 469082	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 3 (EDR3RXD1)4396841, 4396710, P2RFWG2, EDR3RXD1, 4396841B, 4396841P, 4396842, 4396711B	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 4 (EDR4RXD1)4396508, 4396510, 4396918, EDR4RXD1, UKF8001, UKF8001AXX, UKF8001AXX-200, UKF8001AXX-750	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 5 (EDR5RXD1)EDR5RXD1, 4396508, 4396510, 4396918, 4396547, 4396163, 4392857, 4392922	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 6 (EDR6D1)EDR6D1, 4396701, 4396702, 4396703, WF293, RWF2000A, LC200V, L200V	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 7 (EDR7D1)EDR7D1, UKF7003, UKF7002, UKF7001, UKF6001, UKF5001, UKF7003AXX, UKF7002AXX	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter 8 (EDR8D1)EDR8D1, 8171413, 8171414, WF286, WSW-4, WFI-NLC200, Kenmore 9002, 46-9002	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
EveryDrop OEMEveryDrop Filter A (EDRARXD1)EDRARXD1, EDRFA, W11519209, W11536439, 4983957, AP7226886, PD00090121	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire / Electrolux PureSource Ultra II (EPTWFU01 / EWF02)EPTWFU01, EWF02, A13402902 (bypass plug)	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire PurePour Connect PWF-2 (FPPWFU02)FPPWFU02, PWF-2, PWF2	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire PurePour PWF-1 / Electrolux PureAdvantage (FPPWFU01 / EPPWFU01)FPPWFU01, EPPWFU01, PWF-1, PWF1	Refrigerator	Listed (WQA)	Listed (WQA)	Listed (WQA)	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire PureSource 3 (WF3CB)WF3CB, 242069601, 242017800	Refrigerator	Listed (WQA)	--	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire PureSource Plus (WFCB / WF1CB)WFCB, WF1CB, 240394501, 240389101, 240389102, RG-100, RF-100, NGRG-2000	Refrigerator	--	--	--	--	WQA Gold Seal What the record shows We found no published NSF lead/health certification claim on record for this element (the manufacturer's claim level was not located in our sources, which is not the same as 'not certified'). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire PureSource2 (WF2CB / FC-100)WF2CB, FC-100, FC100, NGFC-2000, NGFC2000, SWF2CB, EWF2CBPA, 218732309	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Frigidaire OEMFrigidaire/Electrolux PureSource Ultra II (ULTRAWF)ULTRAWF, EPTWFU01, 241791601	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE GSWFGSWF, GSWFDS, 238C2334P001, AP3418061, EFF-6023A	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE MSWFMSWF, MSWF3PK, MSWFDS, 101820A, 101821B, 101821-B, 238C2334P003, AP3997949	Refrigerator	Listed (WQA)	Listed (WQA)	Listed (WQA)	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE MWF / MWFPMWF, MWFP, MWFA	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE RPWF (non-chip)RPWF, WSG-4 (cross-ref), WD-RPWF (cross-ref)	Refrigerator	Claimed	Claimed	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE RPWFERPWFE, RPWFE3PK, WR17X30702 (later chip variant cross-ref)	Refrigerator	Listed (WQA)	Listed (WQA)	Listed (WQA)	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE XWF / XWFEXWF, XWFE	Refrigerator	Listed (WQA)	Listed (WQA)	--	--	WQA Gold Seal What the record shows Manufacturer filter; certified to the NSF/ANSI standards via WQA Gold Seal (a legitimate certifier; not an NSF International listing). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Haier OEMHaier 0060823485A (Kemflo/Aicro external cartridge)0060823485A, RF-2800-13	Refrigerator	--	--	--	--	WQA Gold Seal What the record shows We found no published NSF lead/health certification claim on record for this element (the manufacturer's claim level was not located in our sources, which is not the same as 'not certified'). Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LT1000P / LT1000PCADQ74793501, ADQ75795104, MDJ64844601, LT1000P, LT1000PC, LT1000PCS, LT1000PR, ADQ74793502	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LT500PLT500P, 5231JA2002A, ADQ72910911, ADQ72910901, 5231JA2002A-S, 5231JA2002B	Refrigerator	Listed	--	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LT600PLT600P, 5231JA2006A, 5231JA2006B, 5231JA2006F, 5231JA2005A	Refrigerator	Listed	--	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LT700PADQ36006101, ADQ36006102, LT700PC, LT700P, ADQ36006113, ADQ75795103, AGF80300702	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LT800PADQ73613401, ADQ73613402, LT800PC, LT800P, ADQ73613408, ADQ75795104	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
LG OEMLG LTF-2 (legacy interior filter)ADQ32617703, ADQ32617801, ADQ32617701	Refrigerator	Listed	--	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Microfilter OEMMicrofilter DA2010CB (universal inline element)DA2010CB, DA2010CB-WF	Refrigerator	Claimed	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Miele OEMMiele IntensiveClear KWF1000KWF1000, KWF 1000, 11513640, 07134220, 9043270	Refrigerator	Mfr-stated	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Samsung OEMSamsung DA29-10105J (HAFEX/EXP) external inline filterDA29-10105J, HAFEX/EXP, HAFEX/EXP 3-pack, WF-110	Refrigerator	Listed	--	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Samsung OEMSamsung HAF-CINDA29-00020B, DA29-00020A, HAF-CIN/EXP, DA97-08006A, DA29-00020B-1	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Samsung OEMSamsung HAF-CU1DA29-00003G, DA29-00003B, DA29-00003F, DA29-00003A, HAF-CU1, HAF-CU1S/EXP, HAFIN1, HAFIN2	Refrigerator	Listed	Listed	Listed	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Samsung OEMSamsung HAF-QIN (DA97-17376B)DA97-17376B, HAF-QIN/EXP, HAF-QIN-2P/EXP, DA97-08006C, HAF-QINS	Refrigerator	Listed	Listed	--	--	NSF International (DWTU listing) What the record shows Manufacturer filter; the NSF/ANSI standards it prints are on the NSF DWTU record. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
APEC OEMAPEC Essence ROES-50 complete filter set (FILTER-MAX-ES50)FILTER-MAX-ES50, FI-ES-SED10 (Stage 1, 5-micron sediment), FI-ES-CAB10 (Stages 2 & 3, 10-micron carbon block, x2), MEM-ES-50 (Stage 4, 50 GPD TFC RO membrane), FI-ES-TCR (Stage 5, inline coconut-shell post carbon)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Express Water OEMExpress Water RO standard-housing replacement filter sets (FLTSET series)FLTSETS6C6G6I3M502 (3-yr, 23 filters, 50 GPD membrane), FLTSETC6S6G6I3M50 (3-yr, 22 filters, 50 GPD membrane), FLTSETC10G10S10 (5-yr half set, 30 filters), SED (sediment 10"x2.5"), ACB (activated carbon block), GAC (granular activated carbon), PAC (post activated carbon inline), 50 GPD RO membrane	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE FQK1K / GXRTDR (single-stage / in-line under-sink)FQK1K, GXRTDR (system/refill cross-ref), FQK1R	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE FQROMF (RO membrane)FQROMF	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE MXRC (SmartWater canister)MXRC, FXRC (cross-ref), GXRLQR (in-line sibling)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE Profile OEMGE Profile FQROPF (RO pre/post filter set)FQROPF, FX12P (legacy cross-ref)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Home Master OEMHome Master Artesian Full Contact TMAFC modular filter change setISetTMA8 (annual 3-filter change set: catalytic carbon, Artesian remineralization+GAC, spun-poly sediment), Mem-TFC50 (50 GPD TFC RO membrane, 3-5 yr), MH-50 (membrane kit with check valve/flow restrictor/fittings)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
iSpring OEMiSpring RCC7 5-stage standard-housing cartridge set (F15-75 / F7-GAC)FP15 (Stage 1, 5-micron 10"x2.5" sediment), FG15 (Stage 2, GAC granular activated carbon), FC15 / CTO (Stage 3, 5-micron carbon block), MEM (75 GPD RO membrane, replace ~2 yr), FT15 (post-carbon inline, 5th stage), F15-75 (2-yr complete pack: 4x FP15, 4x FG15, 4x CTO, 1x membrane, 2x FT15), F7-GAC / F7RO (1-yr complete pack), ZR-017	RO	--	Mfr-stated	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Universal OEMUniversal 10"x2.5" standard sediment / carbon-block RO prefilter stagesGeneric 10"x2.5" (9.75"x2.5") PP spun sediment (5-micron), 10"x2.5" GAC granular activated carbon, 10"x2.5" CTO carbon block (5-micron), iSpring F3CTO universal 3-pack (1 sediment + 2 carbon block)	RO	Claimed	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Waterdrop OEMWaterdrop G2 tankless RO cartridge (G2CF)WD-G2-N1CF / G2CF (combined sediment+carbon, ~12 mo), WD-G2-N2RO (RO membrane)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Waterdrop OEMWaterdrop G3 / G3P600 / G3P800 tankless RO twist-in cartridgesWD-G3-N1CF (CF pre-sediment + carbon block, ~6 mo / 550 gal), WD-G3-N3CB (carbon block, ~12 mo / 1,100 gal), WD-G3-N2RO (RO membrane, ~24 mo / 2,200 gal), G3-2CFCB combo (2x N1CF + 1x N3CB)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Waterdrop OEMWaterdrop N1 countertop RO cartridges (WD-N1-CF / WD-N1-MRO)WD-N1-CF (PP cotton + carbon block pre-filter, 6 mo / 550 gal), WD-N1-MRO (RO membrane, 18 mo / 1,650 gal), B-WD-N1-2YSET (2-yr bundle: 3x CF + 1x MRO)	RO	--	--	--	--	per the listing (verify at info.nsf.org) What the record shows Typically a sediment / RO-stage / specialty element; we found no published NSF reduction claim on record for it. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE FXHSC -- 10" Big Blue Universal Sediment CartridgeFXHSC, GXWH40L (system, takes FXHSC)	Whole-house	Mfr-stated	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
GE OEMGE FXHTC -- 10" Big Blue Sediment + Carbon (Taste & Odor) CartridgeFXHTC	Whole-house	Mfr-stated	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.
Pentair/Pentek OEMPentair/Pentek Big Blue Carbon Cartridges (GAC-BB / RFC-BB / EP-BB / CBC-BB) -- 10" & 20"GAC-BB (155153-43, 10" granular carbon), RFC-BB (10" radial-flow carbon), EP-BB (10" carbon block, 5 micron), CBC-BB (10" 0.5 micron carbon block), EPM-20BB / EP-20BB / CFB-Plus20BB (20" versions)	Whole-house	Mfr-stated	--	--	--	per the listing (verify at info.nsf.org) What the record shows Manufacturer-stated certification; we did not confirm the specific listing/certifier here. Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.

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Certification is SKU-SPECIFIC, not brand-wide: confirm your exact model against the official listing at info.nsf.org before trusting any lead/health claim.

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The NSF data study

We pulled the NSF listings for 9 aftermarket brands. Not one carried NSF-53 line-wide — yet most imply it.

Methodology, the brand-by-brand table, and the limitations — all stated plainly.

Read the study →

Guides by system

Start where your water does

All guides →

Refrigerator

French-door, side-by-side, in-line.

Reverse osmosis

Stages, membranes, TDS, cost.

Whole-house

Softeners, sizing, sediment.

Pitcher & faucet

Everyday filters, what they remove.

The free tools

Decide before you buy

TOOL 01

Which Filter Fits

Pick your fridge or system → exact fit, OEM + verified aftermarket, real NSF status.

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TOOL 02

RO Cost Calculator

Your true cost-per-gallon across membranes and refills over five years.

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TOOL 03

Softener Sizing

Hardness + household → the right grain capacity, no oversell.

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Free cheat sheet

Every brand’s verified filter, in one card.

OEM part, the listed aftermarket match, and what it actually removes. Free, no spam.