Top 10 NSF P473 Certified Water Filters – Under-Sink & Countertop Filtration

As an Amazon Associate I earn from qualifying purchases.

1. Aquasana

#ad

Kitchen Counter Faucet Filtration, Aquasana OptimH2O Reverse Osmosis Under Sink Water Filter System, Filters 95% Of Fluoride, AQ-RO-3.55, Brushed Nickel

#ad
Aquasana #ad - Drink with confidence knowing your drinking water has been purified through both reverse Osmosis & Aqua Sana's Claryum Filtration - to filter 95% of fluoride & 97% Of Chlorine, including lead, plus 99% of 86 other contaminants, asbestos, mercury, pharmaceuticals and more.

Easiest filter replacement - replacements are engineered for ease. One of a kind high performance filter - The first filter system to combine Reverse Osmosis, advanced Claryum filtration, and Remineralization technology. Removes 5x more contaminants than other RO Systems - Tested & proven to provide you with cleaner drinking water than other reverse osmosis filters. No need to disconnect hoses or water lines. Housing easily twists off for snappy replacement! Top-grade components - includes first set of filters, RO tank, faucet and all parts required for DIY installation - No plumber required! .
BrandAquasana #ad
ManufacturerAquasana Inc. #ad
Height12.5 Inches
Length30 Inches
Weight12.3 Pounds
Width50 Inches
Part Number9452896
ModelAQ-RO-3.55
Warranty2-Year Limited Warranty

2. AO Smith

#ad

NSF Certified, AO Smith 4-Stage Reverse Osmosis Water Filter System Under Sink, Brushed Nickel Faucet

#ad
AO Smith #ad - Ro system with remineralization - returns the healthy minerals lost in the reverse osmosis process - such as calcium, magnesium, and potassium.

Full system nsf certified to standards 42, 58, 53, 401 + P473. Annual replacement costs of $220 or less. Limited 2-year warranty. Maximum filtration - reverse osmosis reduces up to 99% of 88 harmful contaminants including lead, asbestos, asbestos, fluoride, pharmaceuticals, pesticides, mercury, chromium, and chlorine. Carbon & claryum filters last 6 months or 365 gallons. Ro membrane and Remineralizer last 12 months. Includes first set of filters, 100% lead free, RO tank, brushed-nickel faucet, a stylish all metal, and all parts required for installation.
BrandAO Smith #ad
ManufacturerAO Smith #ad
Height4.5 Inches
Length12 Inches
Weight17 Pounds
Width12.5 Inches
Part NumberAO-US-RO-4000

3. AO Smith

#ad

AO-MF-ADV, NSF Certified Direct Connect Main Faucet Clean Water Filtration, AO Smith Under Sink Water Filter System

#ad
AO Smith #ad - Filter lasts for 6 months/784 Gallons. Perfect for families of 4 or more. Only takes a few minutes. Clean water straight from your faucet - connects directly to your kitchen sink's cold water line without the need for an additional faucet.

Fast, filtered water - system filters water at 1. 5 gallons per minute. Unit measures 4 x 4 x 20 inches. System will not reduce TDS. Long lasting & cost effecient - no water is wasted and no harmful contaminants are added to your water during filtration. Purifies water & reduces 99% of 77 harmful contaminants - advanced filtration while leaving in all essential minerals. Reduces lead, asbestos, mercury, chlorine, pesticies, pharmaceuticals, chloramine & more.

Full system certified to nsf/ansi standards 42, ensuring the structural integrity & quality of your entire system, 43 and 401 +p473 - product is independently tested by IAOMP & certified to NSF performance standards, not just the filtration media. Includes all parts needed for installation - no plumber required. 140 or less in annual maintenance cost.
BrandAO Smith #ad
ManufacturerAO Smith #ad
Height20.5 Inches
Length4 Inches
Weight3 Pounds
Width4 Inches
Part NumberAO-MF-ADV

4. Aquasana

#ad

Aquasana 2-Stage Under Sink Water Filter System with Chrome Faucet

#ad
Aquasana #ad - Retains the healthy minerals - Claryum filtration keeps calcium, potassium, and magnesium for the healthiest drinking water. Removes up to 99% of 77 contaminants including lead, herbicides, asbestos, pharmaceuticals, pesticides, mercury, and more.

Includes first set of filters and all parts required for DIY installation - no plumber required. Only 10 cents per gallon - 12 times the capacity of the leading gravity pitcher. Full system nsf certified to standards 42, 53, 401 +P473 - will not leach contaminants back into your water. Stylish all metal faucet included in the finish of your choice to match your kitchen decor - 100% lead free. Nothing added and zero waste - no water is wasted and no harmful contaminants are added to your water during filtration. Healthy, clean water for less.
BrandAquasana #ad
ManufacturerAquasana #ad
Height9 Inches
Length8.25 Inches
Weight4.4 Pounds
Width4.25 Inches
Part NumberAQ-5200.56
ModelAQ-5200.56
Warranty1 year warranty

5. Instapure

#ad

53, P473, USA Made MSWF Compatible by Instapure NSF/ANSI Certified 42, PFOA/PFOS, Pharmaceuticals the Instapure REF-IPG-3 ULTRA filter fits GE AP3997949 & more, 401 for CTO, Lead

#ad
Instapure #ad - Provides great tasting water and ice for up to six months or 300 gallons. Certified by iapmo r&t against nsf/ansi 42, asbestos, p473 & csa b483. 1 for the reduction of lead, bpa, cyst, 401, pfoa/pfos, 53, voc’s, 372, Pharmaceuticals, Mercury, Chlorine taste and odor. Made in the USA. Ultra filtration: certified to reduce Lead, Cyst, VOC’s and other contaminants. Simple design: Provides easy, tool-free, no-mess filter replacement.
BrandInstapure #ad
ManufacturerInstapure Brands, Inc. #ad

6. Instapure

#ad

Pharmaceuticals the Instapure REF-IPS-1 ULTRA filter fits Samsung HAFCU1 & more, PFOA/PFOS, Lead, 53, USA Made DA2900003G Compatible Filter by Instapure NSF/ANSI Certified 42, 401 for CTO, P473

#ad
Instapure #ad - Certified by iapmo r&t against nsf/ansi 42, bpa, 401, 372, 53, p473 & csa b483.1 for the reduction of lead, pharmaceuticals, VOC’s, Mercury, PFOA/PFOS, Asbestos, Cyst, Chlorine taste and odor. Provides great tasting water and ice for up to six months or 300 gallons. Made in the USA. Simple design: Provides easy, tool-free, no-mess filter replacement. Ultra filtration: certified to reduce Lead, Cyst, VOC’s and other contaminants.
BrandInstapure #ad
ManufacturerInstapure Brands, Inc. #ad

7. Instapure

#ad

USA Made LT800P Compatible Refrigerator Filter by Instapure, PFOA/PFOS, NSF/ANSI 42, 401 Certified for CTO, P473, 53, Lead, Pharmaceuticals. REF-IPL-4 ULTRA filter fits ADQ73613401 & more

#ad
Instapure #ad - Made in the USA. Certified by iapmo r&t against nsf/ansi 42, p473 & csa b483. 1 for the reduction of lead, bpa, 401, mercury, asbestos, pharmaceuticals, Cyst, VOC’s, 372, PFOA/PFOS, 53, Chlorine taste and odor. Ultra filtration: certified to reduce Lead, Cyst, VOC’s and other contaminants. Provides great tasting water and ice for up to six months or 300 gallons. Simple design: Provides easy, tool-free, no-mess filter replacement.
BrandInstapure #ad
ModelREF-IPL-4 ULTRA

8. Instapure

#ad

GE MWFA & more, Lead, P473, 401 Certified for CTO, 53, PFOA/PFOS, & Pharmaceuticals the Instapure REF-IPG-1 ULTRA filter fits GE GWF, USA Made MWF Compatible Filter by Instapure NSF/ANSI 42

#ad
Instapure #ad - Certified by iapmo r&t against nsf/ansi 42, mercury, bpa, 53, 401, asbestos, pfoa/pfos, p473 & csa b483.1 for the reduction of lead, 372, VOC’s, Pharmaceuticals, Cyst, Chlorine taste and odor. Made in the USA. Ultra filtration: certified to reduce Lead, Cyst, VOC’s and other contaminants. Provides great tasting water and ice for up to six months or 300 gallons. Simple design: Provides easy, tool-free, no-mess filter replacement.
BrandInstapure #ad
ManufacturerInstapure Brands, Inc. #ad
ModelREF-IPG-1 ULTRA

9. Instapure

#ad

53, PFOA/PFOS, NSF/ANSI 42, P473, Pharmaceuticals. The Instapure REF-IPL-1 ULTRA filter fits LG ADQ72910901 & more, Lead, 401 Certified for CTO, USA Made LT500P Compatible Refrigerator filter by Instapure

#ad
Instapure #ad - Ultra filtration: certified to reduce Lead, Cyst, VOC’s and other contaminants. Provides great tasting water and ice for up to six months or 300 gallons. Simple design: Provides easy, tool-free, no-mess filter replacement. Certified by iapmo r&t against nsf/ansi 42, bpa, pfoa/pfos, pharmaceuticals, 401, 372, p473 & csa b483.1 for the reduction of lead, cyst, Asbestos, Mercury, 53, VOC’s, Chlorine taste and odor. Made in the USA.
BrandInstapure #ad
ManufacturerInstapure Brands, Inc. #ad

10. Instapure

#ad

Lead, USA Made UKF7003 Compatible Filter by Instapure NSF/ANSI Certified 42, 53, P473, Pharmaceuticals the Instapure REF-IPM-1 ULTRA filter fits Maytag UKF7003AXX & more, PFOA/PFOS, 401 for CTO

#ad
Instapure #ad - Ultra filtration: certified to reduce Lead, Cyst, VOC’s and other contaminants. Certified by iapmo r&t against nsf/ansi 42, cyst, 53, asbestos, pfoa/pfOS, pharmaceuticals, bpa, 401, mercury, P473 & CSA B483.1 for the reduction of lead, VOC’s, 372, Chlorine taste and odor. Made in the USA. Simple design: Provides easy, tool-free, no-mess filter replacement. Provides great tasting water and ice for up to six months or 300 gallons.
BrandInstapure #ad
ManufacturerInstapure Brands, Inc. #ad