Top 10 AO Smith Water Filter – Replacement Under-Sink Water Filters
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Replacement filter for: the clean water filter - 2-Stage AO-US-200 - Easily replace yourself without the need of a plumber.

Long lasting & cost efficient - central filter lasts for 6-Years or 600, 000 Gallons, and comes with a 6-Year limited warranty. Please consult owners manual for full instructions. Improve skin, hair & air quality - reduce exposure to chlorine & other harmful chemicals that can cause excessive drying, and keep chlorine from evaporating into the air you breathe for cleaner air throughout your home.
Simple diy installation - package comes with central Water Filter, shut-off valve, hose adapter and nipple. Not a water softening system. May require some additional tools for installation. Advanced filtration for healthy, great tasting water - the ao-wh-filter reduces 97% of Chlorine tate & odor for clean water from every tap in your home. Perfect for households of 4 or more people.



120 or less in annual maintenance cost. Full system certified to nsf/ansi standards 42, 43 and 401 +p473 - product is independently tested by IAOMP & certified to NSF performance standards, ensuring the structural integrity & quality of your entire system, not just the filtration media.
Filter lasts for 6 months/500 Gallons. Long lasting & cost effecient - no water is wasted and no harmful contaminants are added to your water during filtration. System will not reduce TDS. Purifies water & reduces 99% of 77 harmful contaminants - advanced filtration while leaving in all essential minerals. Access to filtered water whenever you need It - System filters water at 05 gallons per minute.

Unit measures 4 x 4 x 20 inches. Reduces lead, asbestos, mercury, pesticies, chlorine, pharmaceuticals, chloramine & more. System will not reduce TDS. 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. 140 or less in annual maintenance cost.



1. AO Smith
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5 Micron Filtration, AO Smith AO-WH-PREV-R2-2.5 Inch Sediment Filter Replacement
#adAO Smith #ad - Longer lasting appliances - whole house filter system designed to reduce sediment from every tap. Smith replacement filters for continued contaminant removal and system performance. O. Includes 2-pack of replacement sediment filters.More information #ad
5 micron filtration - reduces sediment smaller than the human eye can see. Filter for use with: whole house sediment filter ao-wh-prev or AO-WH-PRE. Nsf certified to standard 42 for removal of particulate class V. Replacements made easy - no plumber necessary. Replace filter every 6 months. Use only certified, genuine A.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 9.75 Inches |
Length | 5 Inches |
Weight | 0.5 Pounds |
Width | 2.5 Inches |
Part Number | AO-WH-PREV-R2 |
More information #ad
2. AO Smith
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AO Smith Claryum Filter Replacement, 2 Pack
#adAO Smith #ad - Nsf certified to standards 42, 53, and 401 +P473. O. Advanced filtration - reduces up to 99% of 77 harmful contaminants including lead, mercury, chlorine, pharmaceuticals, pesticides, asbestos, and more.Replacement filter for: the clean water filter - 2-Stage AO-US-200 - Easily replace yourself without the need of a plumber.
More information #ad
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. Smith replacement filters for continued contaminant removal and system performance. Use only certified, genuine A.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 5.5 Inches |
Length | 2.25 Inches |
Weight | 0.8 Pounds |
Width | 2.25 Inches |
More information #ad
3. AO Smith
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6yr, 600,000 Gl, AO-WH-Filter, AO Smith Whole House Water Filtration System Single-Stage Carbon, NSF Certified, Reduces 97% of Chlorine
#adAO Smith #ad - System will not reduce TDS. No plumber needed. Works for all your water needs - system effectively filters water for use in drinking, cooking, showering & bathing. No drainage, back flushing or water-waste.Long lasting & cost efficient - central filter lasts for 6-Years or 600, 000 Gallons, and comes with a 6-Year limited warranty. Please consult owners manual for full instructions. Improve skin, hair & air quality - reduce exposure to chlorine & other harmful chemicals that can cause excessive drying, and keep chlorine from evaporating into the air you breathe for cleaner air throughout your home.
More information #ad
Simple diy installation - package comes with central Water Filter, shut-off valve, hose adapter and nipple. Not a water softening system. May require some additional tools for installation. Advanced filtration for healthy, great tasting water - the ao-wh-filter reduces 97% of Chlorine tate & odor for clean water from every tap in your home. Perfect for households of 4 or more people.
Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 29 Inches |
Length | 9 Inches |
Weight | 43 Pounds |
Width | 9 Inches |
More information #ad
4. AO Smith
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AO Smith Main Faucet Filter Replacement
#adAO Smith #ad - Replacement filter for: the clean Water Filter Mains AO-MF-ADV - Easy replacement, no plumber necessary. 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 +P473.More information #ad
Advanced filtration - reduces up to 99% of 77 harmful contaminants including lead, pesticides, mercury, chlorine, asbestos, pharmaceuticals, and more. Claryum filtration reduces harmful contaminants – those you can see, smell and taste, and those you can’t – for optimally clean water.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 17 Inches |
Length | 3.2 Inches |
Width | 3.2 Inches |
More information #ad
5. AO Smith
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Included Replacement Timer, AO Smith Single-Stage Whole House Water Filter
#adAO Smith #ad - Smith Systems. Reminder timer - tells you when it's time to change your filters. Includes filter housing, housing wrench, and reminder timer. Filter cartridges sold separately. Filter system can be used as a stand alone system or with additional A.More information #ad
Longer lasting appliances - whole house filter system designed to reduce sediment from every tap. O. Large capacity 4. 5" filter is perfect for household sizes of 4+ people - Limited 1 year warranty.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 14.5 Inches |
Length | 7.5 Inches |
Weight | 5 Pounds |
Width | 7.5 Inches |
More information #ad
6. AO Smith
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AO Smith 2-Stage Under Sink Clean Water Faucet Filter, NSF Certified Carbon Block Drinking Water Filtration System, AO-US-200
#adAO Smith #ad - Clean water straight from a dedicated faucet - connects with included tee to your 3/8 inch threaded cold water supply line to an additional faucet included with the system. Reduces lead, pharmaceuticals, pesticies, mercury, chlorine, asbestos, chloramine & more.120 or less in annual maintenance cost. Full system certified to nsf/ansi standards 42, 43 and 401 +p473 - product is independently tested by IAOMP & certified to NSF performance standards, ensuring the structural integrity & quality of your entire system, not just the filtration media.
More information #ad
Only takes a few minutes. Perfect for families of 1 to 4. Includes tubing needed for installation - no plumber required. Filter lasts for 6 months/500 Gallons. Long lasting & cost effecient - no water is wasted and no harmful contaminants are added to your water during filtration. System will not reduce TDS. Purifies water & reduces 99% of 77 harmful contaminants - advanced filtration while leaving in all essential minerals. Access to filtered water whenever you need It - System filters water at 05 gallons per minute.
Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 8.75 Inches |
Length | 4 Inches |
Width | 8 Inches |
Part Number | AO-US-200 |
More information #ad
7. AO Smith
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NSF Certified Direct Connect Main Faucet Clean Water Filtration, AO Smith Under Sink Water Filter System, AO-MF-ADV
#adAO Smith #ad - Purifies water & reduces 99% of 77 harmful contaminants - advanced filtration while leaving in all essential minerals. Fast, filtered water - system filters water at 1. 5 gallons per minute. Includes all parts needed for installation - no plumber required.Unit measures 4 x 4 x 20 inches. Reduces lead, asbestos, mercury, pesticies, chlorine, pharmaceuticals, chloramine & more. System will not reduce TDS. Filter lasts for 6 months/784 Gallons.
More information #ad
Long lasting & cost effecient - no water is wasted and no harmful contaminants are added to your water during filtration. Full system certified to nsf/ansi standards 42, 43 and 401 +p473 - product is independently tested by IAOMP & certified to NSF performance standards, ensuring the structural integrity & quality of your entire system, not just the filtration media. 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. 140 or less in annual maintenance cost.
Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 20.5 Inches |
Length | 4 Inches |
Weight | 3 Pounds |
Width | 4 Inches |
Part Number | AO-MF-ADV |
More information #ad
8. AO Smith
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AO Smith AO-WH-PREL-R, 4.5 Inch Sediment Filter Replacement, 25 Micron Filtration
#adAO Smith #ad - 25 micron filtration - reduces sediment smaller than the human eye can see. Smith filters for continued contaminant removal and system performance. O. Large capacity 4. 5" filter is perfect for household sizes 4 or more people.More information #ad
Replacements made easy - no plumber necessary. Replace filter every 6 months. Longer lasting appliances - whole house filter system designed to reduce sediment from every tap. Filter for use with: whole house filter system with Timer AO-WH-PREL. Package includes one replacement filter. Use only certified, genuine A.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 9.5 Inches |
Length | 4.5 Inches |
Weight | 0.5 Pounds |
Width | 4.5 Inches |
More information #ad
9. AO Smith
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Carbon Sediment Filter Replacement 4.5 Inch, 5 Micron Filtration, AO Smith AO-WH-PREL-RCP
#adAO Smith #ad - Filter for use with: whole house filter system with Timer AO-WH-PREL. Replacements made easy - no plumber necessary. Replace filter every 6 months. O. Use only certified, genuine A. Large capacity 4. 5" filter is perfect for household sizes 4 or more people.More information #ad
Longer lasting appliances - whole house filter system designed to reduce sediment from every tap. Smith filters for continued contaminant removal and system performance. 5 micron filtration - reduces sediment smaller than the human eye can see. Includes one replacement filter.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 9.5 Inches |
Length | 4.5 Inches |
Weight | 1 Pounds |
Width | 4.5 Inches |
More information #ad
10. AO Smith
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Carbon Block Sediment Filter Replacement 4.5 Inch, AO Smith AO-WH-PREL-RC, 25 Micron Filtration
#adAO Smith #ad - Large capacity 4. 5" filter is perfect for household sizes 4 or more people. Includes one replacement filter. O. Use only certified, genuine A. Longer lasting appliances - whole house filter system designed to reduce sediment from every tap.More information #ad
25 micron filtration - reduces sediment smaller than the human eye can see. Filter for use with: whole house filter system with Timer AO-WH-PREL. Smith filters for continued contaminant removal and system performance. Replacements made easy - no plumber necessary. Replace filter every 6 months.Brand | AO Smith #ad |
Manufacturer | AO Smith #ad |
Height | 9.5 Inches |
Length | 4.5 Inches |
Weight | 2 Pounds |
Width | 4.5 Inches |
More information #ad