Top 10 Best ao smith water filter in 2026

Last Updated - 6/21/2026

🏆Best Choice

AO Smith

AO Smith Claryum Filter Replacement - 2 Pack - AO-US-200-R

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Replacement filter for: The Clean Water Filter - 2-Stage (AO-US-200) - Easily replace yourself without the need of a plumber.
•Advanced Filtration - Reduces up to 99% of 78 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more.
•Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
•2 Pack of Claryum filters which reduce harmful contaminants – Those you can see, smell and taste, and those you can’t – for optimally clean water.
•WQA Certified to NSF standards 42, 53, and 401.

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$69.99

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AO Smith

AO Smith 2.5"x10" 5 Micron Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PREV-R2

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Filter for use with: Whole House Sediment Filter (AO-WH-PREV or AO-WH-PRE). Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
•Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
•5 micron filtration - reduces sediment smaller than the human eye can see. NSF Certified to Standard 42 for removal of particulate class V.
•Replacements made easy - no plumber necessary. Replace filter every 6 months.
•Includes 2-pack of replacement sediment filters.

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$16.99

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AO Smith

AO Smith Advanced Direct Connect Under Sink Replacement Filter for AO-MF-ADV System - Claryum Filtration Reduces Up To 99% of 78 Harmful Contaminants - AO-MF-ADV-R

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Replacement Filter For The Advanced Main Under Sink Water Filter System (AO-MF-ADV) - Easy replacement and no plumber necessary. Includes one Claryum filter. Does NOT fit AO-MF, AO-FF, or AO-MF-B filter systems.
•Advanced Filtration - Reduces up to 99% of 78 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more.
•Claryum Filtration Reduces Harmful Contaminants – those you can see, smell and taste, and those you can’t – for optimally clean water.
•Filter lasts 784 gallons or 6 months - No water is wasted, and nothing is added to your water during the filtration process.
•IAPMO Tested & Certified to NSF/ANSI standards 42, 53, and 401.

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$84.99

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AO Smith

AO Smith 2.5"x10" 5 Micron Carbon Wrap Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-RCP2

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Filter for use with: Whole House Sediment Filter (AO-WH-PREV or AO-WH-PRE). Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance.
•Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
•5 micron filtration - reduces sediment smaller than the human eye can see.
•Replacements made easy - no plumber necessary. Replace filter every 3 months. Standard capacity (2.5") filter is perfect for household sizes of 1-4 people.
•Includes 2-pack of replacement sediment filters. Fine carbon dust on the filters can be rinsed off or flushed.

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$17.00

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AO Smith

AO Smith 4.5"x10" 5 Micron Carbon Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RCP

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Filter for use with: Whole House Filter System with Timer (AO-WH-PREL). Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance.
•Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
•5 micron filtration - reduces sediment smaller than the human eye can see.
•Replacements made easy - no plumber necessary. Replace filter every 6 months. Large capacity (4.5") filter is perfect for household sizes 4 or more people.
•Includes one replacement filter.

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$40.48

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AO Smith

AO Smith Single-Stage Whole House Water Filter - Included Reminder Timer

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Whole house filter system designed to reduce sediment from every tap.
•Reminder Timer - tells you when it's time to change your filters.
•Filter system can be used as a stand alone system or with additional A. O. Smith Systems.
•Large capacity (4.5") filter is perfect for household sizes of 4+ people.
•Includes filter housing, housing wrench, and reminder timer. Filter cartridges sold separately.

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$76.99

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AO Smith

AO Smith 2.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-RP2

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Filter for use with: Whole House Sediment Filter (AO-WH-PREV or AO-WH-PRE). Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.
•Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
•20 micron filtration - reduces sediment smaller than the human eye can see.
•Replacements made easy - no plumber necessary. Replace filter every 3 months. Standard capacity (2.5") filter is perfect for household sizes of 1-4 people.
•Includes 2-pack of replacement sediment filters.

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$15.99

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AO Smith

AO Smith 4.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RP

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Filter for use with: Whole House Filter System with Timer (AO-WH-PREL). Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance.
•Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
•20 micron filtration - reduces sediment smaller than the human eye can see.
•Replacements made easy - no plumber necessary. Replace filter every 3 months. Large capacity (4.5") filter is perfect for household sizes 4 or more people.
•Includes one replacement filter.

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$22.99

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AO Smith

AO Smith 4.5"x10" 25 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-R

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Filter for use with: Whole House Filter System with Timer (AO-WH-PREL). Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance.
•Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.
•25 micron filtration - reduces sediment smaller than the human eye can see.
•Replacements made easy - no plumber necessary. Replace filter every 6 months. Large capacity (4.5") filter is perfect for household sizes 4 or more people.
•Package includes one replacement filter.

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$34.99

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AO Smith

AO Smith Reverse Osmosis Water Filter Replacement Cartridges - Carbon Replacement Filters for AOS-HERO RO Filtration Systems - Reduce Chlorine & Other Contaminants from Drinking Water - AOS-HERO-S1S3

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Clean, Healthy Water - Reduce up to 99% of 90 contaminants including chlorine, chloramine, lead, pesticides, PFOA/PFOS, cysts, microplastics, and more from water in your house.
•Advanced Filtration - Replacement filter cartridges indepently tested to NSF standards 42, 53, 58, and 401.
•Use only certified, genuine AO Smith replacement filter cartridge for continued contaminant removal and system performance.
•Stage 1 and Stage 3 carbon replacement filter cartridges for AOS-HERO-CHR (B0CCQF4QZX) systems. Replace filters every six months or 365 gallons whichever comes first.

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$99.99

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