Aquasana SmartFlow Reverse Osmosis Stage 1 and Stage 3 Replacements AQ-SFRO-S1S3 white carbon block filters
Aquasana SmartFlow™ Reverse Osmosis Stage 1 and Stage 3 Replacements - AQ-SFRO-S1S3
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Aquasana SmartFlow™ Reverse Osmosis Stage 1 and Stage 3 Replacements - AQ-SFRO-S1S3

Key item features

  • Essential Contaminant Removal: Removes up to 99.99% of contaminants, including lead, chlorine, microplastics, and VOCs, ensuring healthier drinking water.
  • Genuine Aquasana Replacements: Specifically designed genuine Aquasana carbon and Claryum filters for SmartFlow Reverse Osmosis Water Filter Systems (AQ-SFRO-NF, AQ-SFRO-CHR, AQ-SFRO-BN, AQ-SFRO-ORB, AQ-SFRO-MB).
  • Simple Replacement Process: Features a convenient pop and replace design for easy installation, allowing for continued access to clean, delicious water.
  • Extended Filter Life: Each replacement set provides effective filtration for up to 6 months, maintaining consistent water quality.
  • Multi-Stage Filtration: Includes Stage 1 Carbon Block for chlorine, taste, and odor reduction, and Stage 3 Advanced Carbon Block (Claryum filter) for maximum contaminant removal.
  • Advanced Claryum Technology: Stage 3 utilizes activated and catalytic carbon filtration combined with ion-exchange and sub-micron filtration to target lead, microplastics, and VOCs.
  • System Compatibility: Exclusively compatible with Aquasana SmartFlow Reverse Osmosis Systems (model numbers starting with AQ-SFRO), not OptimH2O systems.
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Current price is $91.99
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4.481012658227848 stars out of 5, based on 158 seller reviews(4.5)
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4.2 out of 5 stars
stars12 ratings11 reviews
How item rating is calculated
  1. 5 stars67% (8)
  2. 4 stars17% (2)
  3. 3 stars0% (0)
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  5. 1 star17% (2)
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Showing 1-3 of 11 reviews

Sep 9, 2025
Miguelito
5 out of 5 stars review

Seller Verified Purchase

Product specifications

Overall is good, except one thing that the company does provide an estimate of time frame an average use before it needs to be replace on each filters. Isn't all products supposed to have a specification or specifications about each product? I don't get it. why this company hiding their product specifications away from the customers? then how a customer like me who wants to know about current thing about the product itself before I want to make any purchases.

Review from aquasana.com
Helpful?2C483B6YC5995145156709
May 7, 2026
WalmartCustomer
Sold byAquasana, Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Clean Water is Worth the Investment

If your water has bad taste or contamination from nitrates the reverse osmosis is the only to remove the nitrates from the water. This system, once set up is very easy to maintain and the water for cooking and drinking is safe.

Incentivized Review
Helpful?2C483B6YC5995145156709
Aug 17, 2025
The Newbs
5 out of 5 stars review

Seller Verified Purchase

Quality Product that works as Advertised

The Aquasana RO filter is easy to install and use. This has been a great addition to our home drinking water filtration system and replacing the filters was easy as well. This is definitely a product that is worth the money since it works as advertised. Color us satisfied customers!

Review from aquasana.com
Helpful?2C483B6YC5995145156709