💧 Elevate your hydration game with AO Smith’s elite RO filters—because your water deserves the best.
AO Smith Reverse Osmosis Replacement Cartridges deliver advanced, NSF-certified filtration that removes up to 99% of over 90 contaminants including chlorine, lead, pesticides, and microplastics. Designed for AOS-HERO RO systems, these Stage 1 and Stage 3 carbon filters ensure consistent, high-quality water purification with a recommended replacement every six months or 365 gallons.
J**H
Necessary objects
I needed these for my AO Smith RO water filtration system…so I bought ‘em.
J**S
Great
In my hands as ordered and Fast!!!
O**A
Clear water
Great filters does a great job
C**C
Installation
Easy to install.
S**M
Easy install
This was so easy to install took about 15 minutes
H**Y
Love our filters!!
These are so easy to Swap out! We love our reverse osmosis!
N**E
okay
These are very hard to install
D**L
Replacement was Easy and Incident-Free
If you're looking at these then you're already sold on your AO Smith machine. These replacement filters work just as good as the originals and are trivial to install.
Trustpilot
4 days ago
1 month ago
