AO Smith

4.9

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When purchasing a product, price is the consumer's primary concern. At present, AO Smith has 306 products for sale. AO Smith products range in price from $15.99 to $399, and the average price of all the products is about $84.

We found that most of the AO Smith products are manufactured by A. O. Smith. The manufacturer provides AO Smith with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase AO Smith products from the seller A. O. Smith Water Treatment. The brand holds an average rating of 4.87, testifying to its excellent reputation.

AO Smith Best Sellers

Last Updated: Jan 11, 2025

AO Smith Whole House Salt Free Descaler System - Works with City & Well Water Filters - 6yr, 600,000 Gl - Water Softener Alternative for Home - AO-WH-DSCLR

Water Softeners

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Salt-Free Scale Prevention – The A. O. Smith Descaler reduces scale build up in pipes and plumbing using a salt-free & chemical-free system but does not soften water or remove minerals that cause hardness. No cleaning, backwashing, salt-bags, or electricity required.

Effective Solution for Moderate Hardness – Ideal for use when incoming water supply has a hardness under 15 grains per gallon, alkalinity under 250 mg/L, pH under 8.3, and less than 0.3 ppm of iron.

Works For All Your Water Needs – System works effectively on water for use in drinking, cooking, showering, and bathing. Perfect for households of 4 or more people. System will not reduce TDS, sulfur, or iron.

Well Or City Water – Our Whole House Descaler is engineered to work with both well & city water systems. Includes one Whole House Descaler, shut-off valve, hose adapter and nipple.

Long Lasting & Cost Efficient – Reduces scale build-up for up to 6-Years or 600,000 Gallons. System includes a 6-Year warranty.

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

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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.

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.

AO Smith Advanced Main Faucet Under Sink Replacement Filter for AO-MF-ADV System - Claryum Filtration Reduces Up to 99% of 78 Harmful Contaminants - AO-MF-ADV-R

Faucet Mount Water Filters

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Replacement Filter For The Advanced Main Faucet 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.

AO Smith Membrane & Remineralizer Replacements

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Replacement RO Membrane & Remineralizer for: The Clean Water Filter with RO Boost (AO-US-RO-4000). Not Compatible with SmartFlow Systems.

Reverse Osmosis reduces up to 99% of harmful contaminants including lead, fluoride, asbestos, chromium, and nitrates.

RO system with Remineralization - returns the healthy minerals lost in the reverse osmosis process - such as calcium, magnesium, and potassium.

RO Membrane and Remineralizer last approximately 12 months - Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.

NSF certified to standard 58. Does not include 90 degree elbow connection to drain. Please use existing 90 degree elbow to connect the remineralizer to the drain line. Do NOT discard the connector with the old membrane.

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

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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.

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

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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.

Carbon & Claryum® Filter Replacements for the AO-US-RO-4000 - Not Compatible with SmartFlow Systems

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Replacement Carbon & Claryum filters for: The Clean Water Filter with RO Boost (AO-US-RO-4000). Not Compatible with SmartFlow Systems.

Reduces up to 99% of 88 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.

Carbon & Claryum filters last 6 months or 365 gallons - Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.

NSF certified to standards 42, 53, 401 + P473.

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

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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.

AO Smith Under Sink Water Filter System - Advanced Direct Connect Under Counter Clean Water Filtration - Claryum Filtration Reduces 99% of 78 Harmful Contaminants - AO-MF-ADV

Water Filtration Systems

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Clean Water Straight From Your Faucet - Connects directly to your kitchen sink cold water line without the need for an additional faucet. Only takes a few minutes. Includes system, one Claryum filter, and all parts necessary for installation No plumber required. Measure your space to ensure unit fits under the sink (4 x 4 x 20 inches).

Purifies Water & Reduces 99% of 77 Harmful Contaminants - Advanced filtration while leaving in all essential minerals. Reduces lead, mercury, asbestos, pesticies, pharmaceuticals, chlorine, chloramine & more. System will not reduce TDS.

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.

Long Lasting & Cost Effecient - No water is wasted and no harmful contaminants are added to your water during filtration. Filter lasts for 784 gallons or 6 months. $140 or less in annual maintenance cost.

Fast, Filtered Water - System filters water at 1.5 gallons per minute. Perfect for families of 4 or more.

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Claryum®, Carbon, & Microbial Remineralizer Replacements for The AO-US-RO-MB-4000 - Not Compatible with SmartFlow Systems

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Replacement Carbon Filter, Claryum Filter, and Remineralizer with Microbial Boost for: The Clean Water Machine with RO & Microbial Boost (AO-US-RO-MB-4000). Not compatible with Smartflow Systems.

Reduces up to 99% of 90 harmful contaminants including lead, mercury, pesticides, pharmaceuticals, and chlorine, and more.

Remineralization & Microbial Filtration - returns the healthy minerals lost in the reverse osmosis process - such as calcium, magnesium, and potassium while removing bacteria and viruses.

Claryum filtration reduces harmful contaminants – those you can see, smell and taste, and those you can't – for optimally clean water - Filters last 6 months or 365 gallons.

IAPMO tested and certified to NSF/ANSI standards 42, 53, 401, P473 & P231.

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

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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.

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

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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.

Reverse Osmosis Membrane Replacement for The AO-US-RO-MB-4000 - Not Compatible with SmartFlow Systems

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Replacement Reverse Osmosis Membrane for: The Clean Water Machine with RO & Microbial Boost (AO-US-RO-MB-4000). Not Compatible with SmartFlow Systems.

Reduces up to 99% of harmful contaminants including lead, fluoride, arsenic, chromium, nitrates, and more.

RO Membrane lasts approximately 1 year. Does NOT include 90 degree elbow connection to drain. Please use existing 90 degree elbow to connect the remineralizer to the drain line. Do NOT discard the connector with the old membrane.

IAPMO tested and certified to NSF/ANSI standard 58.

AO Smith Under Sink Water Filter System - Reduces PFAS, Lead, & Chlorine in Drinking Water - Under Counter Claryum Filtration for Kitchen - 2-Stage - AO-US-200

Water Filtration Systems

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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. Only takes a few minutes. Includes tubing needed for installation - no plumber required.

Purifies Water & Reduces 99% of 78 Harmful Contaminants - Advanced filtration while leaving in all essential minerals. Reduces lead, PFAS (specifically PFOA and PFOS), chlorine, mercury, asbestos, pharmaceuticals, chloramine & more. System will not reduce TDS.

Full System Certified To NSF/ANSI Standards 42, 43 and 401 - Product is WQA tested & certified to NSF performance standards, ensuring the structural integrity & quality of your entire system, not just the filtration media.

Long Lasting & Cost Effecient - No water is wasted and no harmful contaminants are added to your water during filtration. Filter lasts for 6 months/500 Gallons. $120 or less in annual maintenance cost.

Access To Filtered Water Whenever You Need It - System filters water at 0.5 gallons per minute. Perfect for families of 1 to 4.

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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

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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.

AO Smith 2.5"x10" 5 Micron Carbon Block Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-RC2

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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 6 months. Standard capacity (2.5") filter is perfect for household sizes of 1-4 people.

Includes 2-pack of replacement sediment filters.

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

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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.

Includes one replacement filter.

AO Smith High-Efficiency Reverse Osmosis with SmartFlow™ Technology - Under Sink RO Water Filtration System w/Faucet & Compact Tank- Filters Chlorine & Other Contaminants - Chrome - AOS-Hero-CHR

Water Filtration Systems

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Clean, Healthy Tap Water - Reduce up to 99% of 90 contaminants including fluoride, chlorine, chloramine, lead, arsenic, pesticides, PFOA/PFOS, cysts, microplastics, and more from water in your house.

Advanced Filtration - Under counter reverse osmosis filter system is indepently tested to NSF standards 42, 53, 58, and 401.

Dedicated Faucet - Keep water in your home's kitchen flowing with a chrome air gap faucet that prevents backflow into your filtration system by draining the water out of the air gap hole on the side of the faucet. Make sure the drain line is short, direct, and unobstructed.

Easy Filter Replacements - Simply twist out the used cartridge and replace with an AO Smith replacement filter for continued contaminant removal. Use only certified, genuine AO Smith replacements.

Includes first set of filters, RO tank, faucet, and all parts required for under countertop installation. Use Genuine replacements AOS-HERO-S1S3 (B0CCQ9TKMM) and AOS-HERO-S2 (B0CCQCNDLK)

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AO Smith AO-MF-B-R Under Sink Water Filter Replacement - NSF Certified

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Replacement filter for: AO Smith Undersink Water Filter (AO-MF-B) - NSF certified to standard 42 for chlorine taste and odor.

Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.

Single stage water filtration from your existing faucet - Reduces chlorine taste and odor.

No water is wasted, and nothing is added to your water during the filtration process.

Filter lasts 6 months with an annual replacement cost of $40 or less - Includes one filter replacement cartridge.

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

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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.

AO Smith FAQs

Is AO Smith Legit?

Yes, AO Smith is a legitmate brand on Amazon. After conducting a comprehensive analysis of 539 customer reviews for AO Smith products on Amazon, we have determined its average rating. With a strong performance and good quality, AO Smith has received an average rating of 4.87 from numerous buyers, indicating that AO Smith are trustworthy and live up to their claims. Therefore, it is safe to make purchases from AO Smith on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more AO Smith products?

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Go back to FindThisBest's homepage.
Type AO Smith in the search box and hit Enter to see the search results.
Find and click the correct AO Smith to go to the new page.
Select the products you want in the AO Smith buying guide, and take a glance at the prices and features of the products.
View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more AO Smith products.

How does findthisbest choose the top AO Smith products?

We analyze millions of AO Smith products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

How can I purchase AO Smith products via FindThisBest?

Go to the AO Smith page.
Select the product you want in the AO Smith buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product AO Smith Whole House Salt Free Descaler System - W..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the AO Smith products?

Most of the AO Smith products are produced by A. O. Smith. The manufacturer provides AO Smith with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the AO Smith products, helping you make more informed buying decisions. We recommend best choices of the products from the AO Smith brand, helping you make better shopping choices with less time and energy.

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