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AO Smith

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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.

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AO Smith Best Sellers

Last Updated: Jan 11, 2025

Water Softeners

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

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 Cover
  • 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.
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AO Smith Claryum Filter Replacement - 2 Pack - AO-US-200-R

AO Smith Claryum Filter Replacement - 2 Pack - AO-US-200-R Cover
  • 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.
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Faucet Mount Water Filters

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

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 Cover
  • 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.
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AO Smith Membrane & Remineralizer Replacements

AO Smith Membrane & Remineralizer Replacements Cover
  • 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.
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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

AO Smith 4.5"x10" 5 Micron Carbon Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RCP Cover
  • 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.
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AO Smith 2.5"x10" 5 Micron Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PREV-R2

AO Smith 2.5"x10" 5 Micron Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PREV-R2 Cover
  • 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.
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Carbon & Claryum® Filter Replacements for the AO-US-RO-4000 - Not Compatible with SmartFlow Systems

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

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 Cover
  • 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.
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Water Filtration Systems

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

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

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

AO Smith 4.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-RP Cover
  • 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.
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AO Smith 4.5"x10" 25 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-R

AO Smith 4.5"x10" 25 Micron Sediment Water Filter Replacement Cartridge - For Whole House Filtration Systems - AO-WH-PREL-R Cover
  • 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.
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Reverse Osmosis Membrane Replacement for The AO-US-RO-MB-4000 - Not Compatible with SmartFlow Systems

Reverse Osmosis Membrane Replacement for The AO-US-RO-MB-4000 - Not Compatible with SmartFlow Systems Cover
  • 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.
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Water Filtration Systems

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

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 Cover
  • 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.
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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

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 Cover
  • 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.
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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

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

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

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

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

AO Smith AO-MF-B-R Under Sink Water Filter Replacement - NSF Certified Cover
  • 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.
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AO Smith 2.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge - 2 Pack - For Whole House Filtration Systems - AO-WH-PRE-RP2

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