For a good water filter system, Aquasana is one of the best brands you can purchase from. By the time you are finished reading this guide, you will know which Aquasana water filter system offers what you are looking for.

This website is supported by readers. As an Amazon Associate we earn from qualifying purchases.
Aquasana AQ-RO-3
The Aquasana AQ-RO-3 is a reverse osmosis fluoride water filter. With this water filter system, you have access to a total water capacity of 365 gallons. While water flows through this system, asbestos, lead, mercury, and fluoride – among other elements – are thoroughly filtered out. All of this allows for clean water to come out of the system.

No products found.
Aquasana AQ-5300
The Aquasana AQ-5300 is a 3-stage under counter water filter system. With this water filter system, you have access to a total capacity of 600 gallons. As for the filtration features this water filter system offers, they are, essentially, the exact same as the Aquasana AQ-RO-3. But, that being said, this water filter system does not reduce fluoride, so make sure to keep that in mind.

- Instantly Transform Ordinary Tap Water Into Clean Extraordinary Water - Reduces up to...
- High Flow Rate - This system powers through a half-gallon of water every minute No...
- Cost Efficient & Long Lasting - The most economical filter on the market at less than...
Last update on 2023-07-15 / Affiliate links / Images from Amazon Product Advertising API
Aquasana AQ-5200
The Aquasana AQ-5200 is a 2-stage under counter water filter system. You have access to a total capacity of 500 gallons, with this water filter system. For the most part, this water filter system is designed to remove the same elements and compounds as the Aquasana AQ-5300. You cannot remove fluoride with this under counter water filter system, so make sure to keep that in mind.

- Instantly Transform Ordinary Tap Water Into Clean Extraordinary Water - Reduces up to...
- High Flow Rate - This system powers through a half-gallon of water every minute. No...
- Cost Efficient & Long Lasting - The most economical filter on the market at less than...
Last update on 2023-07-15 / Affiliate links / Images from Amazon Product Advertising API
Aquasana Water Filter System Comparison
Aquasana | AQ-RO-3 | AQ-5300 | AQ-5200 |
Product | Reverse Osmosis Fluoride Water Filter | 3-Stage Under Counter Water Filter System | 2-Stage Under Counter Water Filter System |
Capacity | 365 Gallons | 600 Gallons | 500 Gallons |
Chlorine Reduction | 97.6% | 97.6% | 97.6% |
Asbestos & Lead Reduction | ✓ | ✓ | ✓ |
Mercury Reduction | ✓ | ✓ | ✓ |
Fluoride Reduction | 95% | N/A | N/A |
Installation | Under Sink | Under Sink | Under Sink |
Replacement | AQ-RO3-R, AQ-RO3-RO, AQ-RO3-RM | AQ-5300R | AQ-5200R |
Filter Life | varies | 6 months | 6 months |
Finishes | Chrome | Chrome, Brushed Nickel, Oil Rubbed Bronze | Chrome, Brushed Nickel, Oil Rubbed Bronze |
Conclusion
At the end of the day, all three of these water filter systems are excellent. Even though that’s the case, one of these water filter systems will be a better choice for you than the others.

For a great under counter water filter system that offers fantastic capacity and excellent filtration, the Aquasana AQ-5300 and the Aquasana AQ-5200 are both great.
For a powerful reverse osmosis water filter that eliminates fluoride, the Aquasana AQ-RO-3 is a wonderful purchase.
This website is supported by readers. As an Amazon Associate we earn from qualifying purchases.