[ { "brand": "Brita", "product_name": "Elite Replacement Filter (formerly Longlast+)", "model": "OB06", "category": "pitcher", "certifier": "WQA", "standards": [ 42, 53, 401 ], "cert_url": "https://www.brita.com/performance-data-sheets/", "cert_note": "WQA Gold Seal certified to NSF/ANSI 42, 53 and 401. Brita's US pitcher filters are certified by WQA, not NSF — they do not appear in the NSF listing database.", "certified_gallons": 120, "capacity_source": "brita.com", "price_usd": 19.99, "pack_count": 1, "price_source": "brita.com", "price_date": "2026-07-13", "amazon_asin": "B01N30IDMJ", "asin_note": "Genuine Brita listing, confirmed via the 'Visit the BRITA Store' byline — 1 filter, 120 gallons. Every other result on page one for this search is a third-party compatible.", "brand_url": "https://www.brita.com/products/elite-replacement-filters/" }, { "brand": "Brita", "product_name": "Standard Replacement Filter (Original)", "model": "OB03", "category": "pitcher", "certifier": "WQA", "standards": [ 42 ], "cert_url": "https://www.brita.com/performance-data-sheets/", "cert_note": "Certified to NSF/ANSI 42 (aesthetic effects — chlorine taste and odor) ONLY. It carries no NSF/ANSI 53 health certification, so it makes no certified lead claim. Brita's own product page lists chlorine, mercury, copper and cadmium — lead is absent.", "certified_gallons": 40, "capacity_source": "brita.com", "price_usd": 7.99, "pack_count": 1, "price_source": "brita.com", "price_date": "2026-07-13", "amazon_asin": "B00004SU18", "brand_url": "https://www.brita.com/products/standard-replacement-filters/" }, { "brand": "PUR", "product_name": "PLUS Pitcher & Dispenser Replacement Filter", "model": "PPF951K1", "category": "pitcher", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=helen+of+troy", "cert_note": "Listed with NSF to NSF/ANSI 42 and 53; PUR also cites WQA certification for its lead claim. PUR is the most extensively NSF-listed pitcher brand in the database.", "certified_gallons": 40, "capacity_source": "pur.com", "price_usd": 14.99, "pack_count": 1, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B06XHS2FNZ", "brand_url": "https://www.pur.com/shop/replacement-filters/pur-plus-pitcher-filter/" }, { "brand": "ZeroWater", "product_name": "5-Stage Replacement Filter (2-pack)", "model": "ZR-002", "category": "pitcher", "certifier": "IAPMO", "standards": [ 42, 53 ], "cert_url": "https://www.zerowater.com/pages/performance-certification", "cert_note": "System certified by IAPMO R&T to NSF/ANSI 42 (chlorine) and 53 (lead, hexavalent chromium, PFOA/PFOS, mercury). Not in the NSF listing database — IAPMO is a separate accredited certifier.", "certified_gallons": 15, "capacity_source": "target.com", "capacity_note": "TDS-dependent. Culligan/ZeroWater publishes no fixed rated capacity — filter life falls as incoming total dissolved solids rise, and the retail listing gives a 15-gallon estimate. Treat this row's cost per gallon as a best case that gets worse in hard water.", "price_usd": 36.99, "pack_count": 2, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B00OZIOLB2", "brand_url": "https://www.zerowater.com/pages/performance-certification" }, { "brand": "everydrop (Whirlpool)", "product_name": "Refrigerator Water Filter 1", "model": "EDR1RXD1", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=whirlpool", "cert_note": "NSF-listed to NSF/ANSI 42, 53 and 401 under Whirlpool.", "certified_gallons": 200, "capacity_source": "everydropwater.com", "price_usd": 59.99, "pack_count": 1, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B00UXG4WR8", "brand_url": "https://www.everydropwater.com/" }, { "brand": "everydrop (Whirlpool)", "product_name": "Refrigerator Water Filter 2", "model": "EDR2RXD1", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=whirlpool", "cert_note": "NSF-listed to NSF/ANSI 42, 53 and 401 under Whirlpool.", "certified_gallons": 200, "capacity_source": "everydropwater.com", "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": "B00VBP8QPO", "brand_url": "https://www.everydropwater.com/" }, { "brand": "LG", "product_name": "LT1000P Refrigerator Water Filter", "model": "LT1000P", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=LG+Electronics", "cert_note": "NSF-listed to NSF/ANSI 42, 53 and 401. LG's LT800P is listed to 42 and 53 only — the 401 emerging-contaminant claim does not carry across the LT line.", "certified_gallons": 200, "capacity_source": "lg.com", "price_usd": 54.99, "pack_count": 1, "price_source": "lg.com", "price_date": "2026-07-13", "amazon_asin": "B074HLRXMP", "asin_note": "Genuine LG listing, confirmed via the 'Visit the LG Store' byline — single filter, 200 gallons, NSF 42/53/401. Most page-one results for this search are third-party compatibles.", "brand_url": "https://www.lg.com/us/appliances-accessories/lg-lt1000p-refrigerator-water-filter" }, { "brand": "Samsung", "product_name": "DA29-00020B Refrigerator Water Filter (HAF-CIN)", "model": "DA29-00020B", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=Samsung", "cert_note": "NSF-listed to NSF/ANSI 42, 53 and 401.", "certified_gallons": 300, "capacity_source": "samsung.com", "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": "B07M7L5D1C", "brand_url": "https://www.samsung.com/us/home-appliances/refrigerators/water-filters/" }, { "brand": "Waterdrop", "product_name": "WDS-F27 — Samsung DA29-00020B replacement (4-pack)", "model": "WDS-F27", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=Qingdao+Ecopure+Filter", "cert_note": "NSF-listed under Qingdao Ecopure Filter Co. to NSF/ANSI 53 (health effects, incl. lead) at a rated capacity of 300 gallons, plus 42. Aftermarket, and genuinely certified — Waterdrop holds hundreds of NSF listings. Retail listings also cite NSF/ANSI 372, which is a lead-free MATERIALS standard (the plastic doesn't leach lead) and is NOT a filtration claim — we exclude it from the standards column.", "certified_gallons": 300, "capacity_source": "NSF listing (Qingdao Ecopure Filter Co., model WDS-F27)", "price_usd": 35.99, "pack_count": 4, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B01CA34OVK", "asin_note": "Genuine Waterdrop listing, confirmed via the 'Visit the Waterdrop Store' byline (sold as WD-F27).", "brand_url": "https://www.waterdropfilter.com/products/waterdrop-replacement-for-samsung-da29-00020b-fridge-water-filter" }, { "brand": "Waterdrop", "product_name": "Plus WDP — Samsung DA29-00020B replacement (3-pack)", "model": "WDP-F27", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=Qingdao+Ecopure+Filter", "cert_note": "The 'Plus' (WDP) line adds NSF/ANSI 401 — PFAS and pharmaceuticals — on top of 42 and 53. NSF-listed at 300 gallons, same as the standard WDS line. Same brand, same fridge, one extra standard: the Plus/Standard split is Waterdrop's version of Brita's Elite/Standard split, and it is easy to buy the wrong one.", "certified_gallons": 300, "capacity_source": "NSF listing (Qingdao Ecopure Filter Co., model WDP-F27)", "price_usd": 39.99, "pack_count": 3, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B01GAAYTGY", "asin_note": "Genuine Waterdrop listing, confirmed 2026-07-26 via the 'Visit the Waterdrop Store' byline — Waterdrop Plus WDP-F27, NSF 401/53/42, 3-pack, Samsung DA29-00020B. The Plus line (not the standard WD-F27).", "brand_url": "https://www.waterdropfilter.com/products/samsung-da29-00020b-refrigerator-water-filter-nsf-53-certified" }, { "brand": "Waterdrop", "product_name": "Plus WDP-UKF8001 — everydrop Filter 4 / EDR4RXD1 replacement", "model": "WDP-UKF8001", "category": "fridge", "certifier": "NSF", "standards": [ 42, 53, 401 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=Qingdao+Ecopure+Filter", "cert_note": "NSF-listed under Qingdao Ecopure Filter Co. as EFF-6007S / WDP-UKF8001, rated 300 gallons, with NSF/ANSI 53 reduction claims for lead, cyst, benzene, mercury, carbofuran and endrin — plus 42 and 401 (PFOA/PFOS). Replaces Whirlpool everydrop Filter 4 / Maytag UKF8001.", "certified_gallons": 300, "capacity_source": "NSF listing (Qingdao Ecopure Filter Co., EFF-6007S / WDP-UKF8001)", "price_usd": 34.99, "pack_count": 1, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B01GAAJJ6Y", "asin_note": "Genuine Waterdrop listing, confirmed via the 'Visit the Waterdrop Store' byline. Note the Amazon link is a 3-pack while our cost per gallon uses Target's single-filter price ($34.99) — the conservative figure. Per gallon the 3-pack is cheaper still.", "brand_url": "https://www.waterdropfilter.com/" }, { "brand": "Waterdrop", "product_name": "WD-F38 — everydrop EDR1RXD1 replacement (3-pack)", "model": "WD-F38", "category": "fridge", "certifier": "NSF", "standards": [ 42 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?CompanyName=Qingdao+Ecopure+Filter", "cert_note": "Sold as 'NSF 42 and 372 certified' — which sounds comprehensive and is not. NSF/ANSI 42 is chlorine, taste and odour; NSF/ANSI 372 only certifies that the housing MATERIAL is lead-free, and is not a filtration claim at all. There is no NSF/ANSI 53 listing, so this filter carries NO certified lead claim — while the everydrop EDR1RXD1 it replaces holds 42, 53 AND 401. Swapping to it to save money silently gives up your lead certification.", "certified_gallons": null, "capacity_source": null, "capacity_note": "No rated capacity for a certified health claim — the 42-only listing carries no lead/health reduction to rate.", "price_usd": 31.99, "pack_count": 3, "price_source": "target.com", "price_date": "2026-07-13", "amazon_asin": "B0CGV6Q5LW", "brand_url": "https://www.waterdropfilter.com/", "asin_note": "Genuine Waterdrop listing, confirmed 2026-07-26 via the 'Visit the Waterdrop Store' byline — Waterdrop WD-F38 (standard line, NSF 42), 3-pack, everydrop Filter 1 / EDR1RXD1. Not the Plus WDP-F38." }, { "brand": "Berkey", "product_name": "Big Berkey / Royal Berkey / Travel Berkey (Phoenix element)", "model": "Phoenix Gravity New Millennium Edition", "category": "pitcher", "certifier": "NSF", "standards": [ 42 ], "cert_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=Berkey&hdModlStd=ModlStd", "cert_note": "Listed under New Millennium Concepts Ltd to NSF/ANSI 42 ONLY — chlorine reduction and taste/odor. There is no NSF/ANSI 53 listing, so there is no certified lead or health claim. The widely-sold Black Berkey element is not listed at all; the certification attaches to the newer Phoenix element.", "certified_gallons": null, "capacity_source": null, "capacity_note": "No rated capacity for a certified health claim is published in the NSF listing.", "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://info.nsf.org/Certified/DWTU/Listings.asp?TradeName=Berkey&hdModlStd=ModlStd" }, { "brand": "Clearly Filtered", "product_name": "Clearly Filtered Water Pitcher", "model": "CF-Pitcher", "category": "pitcher", "certifier": null, "standards": [], "cert_url": null, "cert_note": "Not found in the NSF certified listing database (checked 2026-07-13). Clearly Filtered advertises testing to NSF/ANSI protocols by independent labs, which is not the same as being certified by an accredited certifier (NSF, WQA or IAPMO) with ongoing audits.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://www.clearlyfiltered.com/" }, { "brand": "Epic Water Filters", "product_name": "Epic Pure Water Filter Pitcher", "model": "Epic Pure", "category": "pitcher", "certifier": null, "standards": [], "cert_url": null, "cert_note": "Not found in the NSF certified listing database (checked 2026-07-13). Epic publishes independent lab test reports against NSF/ANSI protocols; that is lab testing, not third-party certification.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://epicwaterfilters.com/" }, { "brand": "Sawyer", "product_name": "Squeeze Water Filter", "model": "SP129", "category": "portable", "certifier": null, "standards": [], "cert_url": null, "cert_note": "Not found in the NSF certified listing database (checked 2026-07-13). Sawyer advertises independent lab testing of its 0.1-micron absolute hollow-fiber membrane; that is lab testing against a protocol, not certification by an accredited body with ongoing audits and a public listing.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://www.sawyer.com/products/squeeze-water-filtration-system" }, { "brand": "Katadyn", "product_name": "BeFree Water Filtration System", "model": "BeFree 0.6L", "category": "portable", "certifier": null, "standards": [], "cert_url": null, "cert_note": "Not found in the NSF certified listing database (checked 2026-07-13). Katadyn cites independent testing of the 0.1-micron EZ-Clean membrane and is noted in the outdoor press for making conservative, provable claims — but there is no accredited certification listing behind them.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://www.katadyn.com/us/us/products/water-filters" }, { "brand": "LifeStraw", "product_name": "Peak Series Squeeze / Original Straw", "model": "Peak Squeeze", "category": "portable", "certifier": null, "standards": [], "cert_url": null, "cert_note": "The backpacking line is described by LifeStraw as 'independently lab tested to US EPA and NSF P231 standards' — testing to a protocol, not a certification listing. Not found under LifeStraw in the NSF certified listing database (checked 2026-07-13). Notably, LifeStraw states its Home pitcher line DOES hold accredited NSF/ANSI 42, 53 and 401 certifications — the same company draws the certified line at its home products, not its trail products.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://lifestraw.com/pages/testing" }, { "brand": "Grayl", "product_name": "GeoPress Purifier Bottle", "model": "GeoPress 24oz", "category": "portable", "certifier": null, "standards": [], "cert_url": null, "cert_note": "Not found in the NSF certified listing database (checked 2026-07-13). Grayl advertises independent lab testing of its press-through purifier cartridge against NSF/ANSI 42, 53 and P231 protocols; 'tested to' is a real claim, but it is not an accredited certification with a public listing and ongoing factory audits.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://grayl.com/" }, { "brand": "MSR", "product_name": "Guardian Purifier (pump & gravity)", "model": "Guardian", "category": "portable", "certifier": null, "standards": [], "cert_url": null, "cert_note": "The Guardian is famous for passing testing to NSF protocol P248 — the U.S. military's 'worst-case water' purifier standard, and a genuinely demanding independent protocol. It is still 'tested to', not 'certified': MSR/Cascade Designs does not appear in the NSF certified listing database (checked 2026-07-13), so there is no public listing or ongoing audit behind the claim. Probably the strongest tested-to story in this table; a tested-to story nonetheless.", "certified_gallons": null, "capacity_source": null, "price_usd": null, "pack_count": 1, "price_source": null, "price_date": null, "amazon_asin": null, "brand_url": "https://cascadedesigns.com/products/guardian-purifier" } ]