AO Smith Main Faucet Filter Replacement
AO Smith Main Faucet Filter Replacement
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AO Smith

AO Smith Main Faucet Filter Replacement

4.5 stars out of 19 reviews
(4.5)|
19 ratings

Key item features

  • Easy Replacement: 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 77 harmful contaminants including lead, mercury, asbestos, pesticides, pharmaceuticals, chlorine, and more.
  • Claryum Technology: Claryum filtration reduces harmful contaminants - those you can see, smell, and taste, and those you can't - for optimally clean water.
  • Long-Lasting: Filter lasts 784 gallons or 6 months - No water is wasted, and nothing is added to your water during the filtration process.
  • Certified Quality: IAPMO Tested & Certified to NSF/ANSI standards 42, 53, and 401 +P473.
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Current price is $93.49
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  • Free 90-day returns

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Columbus, 43215
Arrives by Thu, Mar 19
Sold by A. O. SmithPro Seller
Fulfilled by Walmart
4.775862068965517 stars out of 5, based on 59 seller reviews(4.8)
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4.5 out of 5 stars
stars19 ratings11 reviews
How item rating is calculated
  1. 5 stars74% (14)
  2. 4 stars11% (2)
  3. 3 stars11% (2)
  4. 2 stars0% (0)
  5. 1 star5% (1)
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Showing 1-3 of 11 reviews

Feb 1, 2026
Tom
Sold byA. O. SmithDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Understandably it's a bit heavy for a filter, so getting it in properly is a bit of a hassle. As it covers 8000 gallons, instead of installing through the main faucet, I installed the filter itself on the side of the cold water, with its own spigot. This way, I only use the filter for drinking water and don't run through the filter as quickly. It tastes fine, filtering out, per label, 98% of contaminates. I do notice the difference taste from that of the tap. It's a bit more costly, but I know it does work.

Incentivized Review
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Oct 22, 2025
Tony
Sold byA. O. SmithDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Easy to use and maintain.

With concerns to PFAS, lead and other chemicals, we looked to a variety of filters and filtration solutions. This one was simple and to date has been problem free. Easy to replace spent filter cartridges. Five minutes and it is done.

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Oct 22, 2025
NADINE
Sold byA. O. SmithDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Easy to install and the water has a great taste.

This filter does an excellent job of filtering water, and the taste is great. It is a snap to install in the base just push in place and twist to lock in.

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