AO Smith Main Faucet Filter Replacement
AO Smith Main Faucet Filter Replacement
Hero image 0 of AO Smith Main Faucet Filter Replacement, 0 of 6

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.
Generated by AI
Current price is $93.49
Price when purchased online
  • Free shipping
  • Free 90-day returns

How do you want your item?

Try 30 days of Free Shipping with Walmart+! Choose plan at checkout.
How do you want your item?
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)
Report an issue with this seller
Free 90-day returns
walmart plus

Get free delivery, shipping and more*

*Restrictions apply

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.5 out of 5 stars
stars19 ratings11 reviews
How item rating is calculated
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

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
Helpful?3RM0Z9D9HF94494252566
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.

Incentivized Review
Helpful?3RM0Z9D9HF94494252566
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.

Incentivized Review
Helpful?3RM0Z9D9HF94494252566