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SmartFlow® Reverse Osmosis
High-efficiency reverse osmosis system removes up to 99.99% of 90 contaminants, including fluoride, arsenic, chlorine, and lead.
PATENTED SMARTFLOW® TECHNOLOGY PROVIDES MORE PURE WATER, LESS WATER WASTE, AND LONGER FILTER LIFE.
Availability:
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Delayed Shipping
Available
(2/28/25)
100385796
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Select Faucet Finish: Chrome
Benefits of Using a Reverse Osmosis Water Filter
Peace of Mind
Get clean, healthy water by reducing 90 contaminants, including fluoride, arsenic, chlorine, lead, PFOA/PFOS, cysts, microplastics, and more.
Ultra-Delicious
Unlike other RO systems, ours includes a Remineralizer that restores beneficial minerals for healthier, delicious water.
No Added Chemicals
Rest easy knowing that no chemicals are added during the filtration process.
Water You Can Trust
WQA tested and certified to NSF/ANSI Standards 42, 53 (includes P473), 58, 401, and CSA B483.1.
Eco-Friendly
Make a difference with this sustainable, eco-friendly solution that replaces the equivalent of 2,750+ plastic water bottles per set of filters.
Your Culinary Secret
Filtered water produces more natural flavors for amazing results in the kitchen. Leave your friends wondering about your best kept secret.
How It Works
Ultimate Purity
The power of Claryum® technology and reverse osmosis combine to reduce 90 contaminants, including chlorine, lead, fluoride, microplastics, PFOA/PFOS, and pesticides for optimum health and hydration.
Ultimate Purity
The power of Claryum® technology and reverse osmosis combine to reduce 90 contaminants, including chlorine, lead, fluoride, microplastics, PFOA/PFOS, and pesticides for optimum health and hydration.
Innovative Technology
Claryum® Technology
Four different methods of advanced filtration work together to reduce the maximum number of contaminants.
Reverse Osmosis Technology
One of the most effective water filtration methods to reduce fluoride. Also tackles nitrates, nitrites, lead, radium, and arsenic.
Remineralization
Adds back healthy minerals that are lost in the reverse osmosis process to improve water pH balance for optimally alkaline drinking water.
SmartFlow® Technology
Our patented technology provides you with more pure water, less water waste, and longer filter life than the average RO system.
Dedicated Faucet
Premium, all metal faucet – available in four designer finishes – keeps filtered water flowing.
Easy Filter Replacements
Expertly engineered for easy replacement. No need to disconnect hoses or water lines — simply twist out and replace.
This system comes with a 2-Year Limited Warranty and a 90-Day Satisfaction Guarantee so you can be confident in your purchase.
WQA tested and certified to NSF/ANSI Standards 42, 53, 58, 401, and CSA B483.1 for the claims specified on the Performance Data Sheet.
Whole Health, Pure Performance
This filter removes up to:
>99%
Asbestos and Cysts
99%
Lead, VOCs, Microplastics
96%
Chlorine, Chloramines, Arsenic, Pesticides, Herbicides
90%
Fluoride
Introducing the SmartFlow® Reverse Osmosis, Aquasana's brand-new, high-efficiency reverse osmosis system that provides you with optimum health and hydration. This RO system combines Aquasana's Claryum® filtration technology with reverse osmosis technology to remove up to 99.99% of 90 contaminants, including fluoride, arsenic, lead, chlorine, microplastics, PFOA/PFOS, and more. The SmartFlow® Reverse Osmosis boasts one of the highest certified contaminant removal rates of all reverse osmosis systems on the market. In fact, it’s certified to reduce 89 more contaminants than Amazon’s top-selling RO system is certified to reduce.*
Featuring our patented SmartFlow® technology, this system provides you with more pure water, less water waste, and longer filter life than the average RO filter. The SmartFlow® Reverse Osmosis water filter boasts a 57% greater efficiency percentage and a 93% higher daily production rate than our previous reverse osmosis system.
The SmartFlow® Reverse Osmosis is tested and certified by WQA to NSF/ANSI Standards 42, 53 (includes P473), 58, 401, and CSA B483.1 to effectively reduce 90 contaminants, including 90% of fluoride. It’s also certified to reduce 99.99% of cysts, 99.9% of asbestos, 99% of lead, VOCs, and microplastics, and 96% of chlorine, chloramines, arsenic, pesticides, and herbicides — all while restoring healthy minerals that other reverse osmosis systems remove, providing you with optimum health and hydration.
The SmartFlow® Reverse Osmosis features a multi-stage filtration process to ensure maximum contaminant removal.
Stage 1: Carbon Block: Reduces chlorine, taste, and odor prior to reverse osmosis filtration.
Stage 2: SmartFlow® Membrane: Ultra-efficient, patented SmartFlow® membrane technology reduces fluoride, nitrates, nitrites, arsenic, PFOA/PFOS, and more.
Stage 3: Advanced Carbon Block: Claryum® filter block ensures maximum contaminant removal. Activated and catalytic carbon filtration combines with Ion-exchange and sub-micron filtration to tackle lead, microplastics, VOCs, mercury, and more.
Stage 4: Remineralizer: Remineralizes water to add back healthy, beneficial amounts of minerals that are lost in the reverse osmosis process. Improves pH balance and water alkalinity.
With the combined power of reverse osmosis, Claryum® filtration, and remineralization you have immediate access to clean, healthy water for drinking, cooking, washing your vegetables, and more.
The SmartFlow® has been designed to provide ultra-powerful filtration in a more compact design. A smaller tank size and smartly-designed chassis means this system takes up less under sink space than the leading reverse osmosis unit.
Our genuine and certified reverse osmosis filter replacements are engineered for the easiest replacement. No need to disconnect hoses or water lines — simply twist out and replace. The SmartFlow® Reverse Osmosis Carbon and Claryum® Filter Replacements will last for 365 gallons or up to 6 months. The Remineralizer Replacement will last for 6 months, as well. Our SmartFlow® Reverse Osmosis Membrane Replacement will last for 12 months.
The available all-metal dedicated faucet comes in four finishes — Chrome, Brushed Nickel, Matte Black, and Oil Rubbed Bronze — so you can match your kitchen décor. We also offer a “No Faucet” option so you can use your own faucet.
Aquasana’s SmartFlow® Reverse Osmosis features a reliable 0.8 gallons per minute (gpm) flow rate to deliver clean, healthy water.
*As of 1/10/2025.
- Membrane Production:
- 51.4 gpd
- Membrane TDS Reduction:
- 96.4%
- Daily Production Rate:
- 25.7 gallons
- Operating Pressure:
- 40-80 psi
- Operating Temperature:
- 40-100°F
- Manifold Dimensions:
- 12.93" x 4.5" (H x W)
- Tank Dimensions:
- 13.74" x 9.06" (H x D)
Always use genuine, certified Aquasana replacements for continued contaminant removal and system performance.
SmartFlow® Reverse Osmosis Carbon Block and
Advanced Carbon Block Replacements
Replace every 6 months.
Ensures maximum contaminant removal for up to 6 months
SmartFlow® Reverse Osmosis Membrane
Replacement
Replace every 12 months.
Ultra-efficient, patented technology reduces fluoride, arsenic, PFOA/PFOS, and more
SmartFlow® Reverse Osmosis Remineralizer
Replacement
Replace every 6 months.
Improves pH balance and water alkalinity
Help & Support
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Learn about our SmartFlow® Reverse Osmosis System
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How to Install Aquasana's SmartFlow® Reverse Osmosis Water Filter
SmartFlow® Reverse Osmosis Under Sink System
Need a replacement filter?
Water filters are an effective way to provide your household with healthy, great-tasting water. However, waiting too long to replace your filter can cause your system to stop working, and it may even become a source of bacteria or mold. Prevent filter contamination by replacing it on time.
Get filters auto-delivered right when you need them — plus receive 15% off the price of replacement filters, free shipping, and an extended limited warranty on your filtration system. Protect your investment and save money with our no-contract Water for Life® program.
1. Do I need a plumber to install the
system?
Depending on your skills and experience, we recommend hiring a professional to install your reverse osmosis
system. Installation does require drilling into your pipes, which is not recommended for individuals
unfamiliar with plumbing and permanent appliance installation. Please read through the owner's manual
carefully before attempting to install the system. If you have any questions or need assistance, our
technical support representatives at 866-662-6885 can guide you through the installation process. Or, follow
along with our installation video.
2. I'm a renter so I can't drill or
modify my plumbing. What should I do?
Drilling into your water pipes is required to install the Aquasana SmartFlow® Reverse Osmosis water filter.
For an easy installation that requires zero drilling, we recommend our Claryum® Direct Connect filter. This DIY install
filter connects directly to your cold water line. So, no drilling or altering your plumbing is required.
Aquasana also has a countertop option that offers the same professional grade filtration as our under sink
options, the Clean Water Machine.
3. I have an existing filtration or
side faucet from a previous system. Can I use that with my new Aquasana SmartFlow® Reverse Osmosis water
filter?
The faucet included with the Aquasana SmartFlow® Reverse Osmosis is expertly designed to work with our
reverse osmosis system. If you choose to use another reverse osmosis air gap faucet, please consult the
Owner's Manual, and we recommend you seek the help of a plumber to ensure proper installation. In order to
maintain the NSF/ANSI 58 certification of this product, the drain line installation must comply with the
standard requirements of a vertical air gap of two pipe diameters or 25 mm (1 in), whichever is larger, or
an air gap faucet that is tested and certified against NSF/ANSI 58 must be included.
4. Do I need to use an air gap faucet
for the SmartFlow Reverse Osmosis?
In most cases, an air gap faucet is not required, and standard faucets will work seamlessly with your reverse osmosis (RO) water filtration system. However, certain plumbing codes prohibit a direct connection between a drain line and a water-using device, requiring the installation of an air gap faucet or another type of backflow prevention device, such as a backflow preventer, on the drain connection. If this applies to your area, you will need to purchase the appropriate device separately to ensure compliance with local regulations.
In order to maintain the NSF/ANSI 58 certification of this product, the drain line installation must comply with the standard requirements of a vertical air gap of two pipe diameters or 25 mm (1 in), whichever is larger, or an air gap faucet that is tested and certified against NSF/ANSI 58 must be included.
5. Why is it important to flush my
SmartFlow® Reverse Osmosis system during the initial installation?
When RO membranes are manufactured, there is a preservative used to protect the membrane fibers from damage.
This preservative needs to be flushed out after the system is installed and prior to drinking water from the
RO system. In addition, the RO holding tank should be sanitized with 3mL of bleach during the installation.
It is important to follow the flushing instructions in the Owner’s Manual to ensure all bleach from the
water tank is flushed before consumption.
6. What should I do if my system has
a leak or drip?
Turn off the cold water valve underneath the sink and depressurize the system by opening the faucet and
releasing all the water. Ensure color-coded tubing is installed into the correct placement on the system.
Tubing should be cut straight across, not at an angle. Check to ensure the tubing is fully inserted into the
system manifold until tubing can no longer be pushed in. Once all tubing is installed and the system is
reconnected, turn the water valve on and check for leaks. Check that the filter cartridges are in the locked
position. They should be rotated fully clockwise until the handles are horizontal.
7. What should I do if I am
experiencing a slow water flow?
Ensure water is flowing from the dedicated faucet. If the water is flowing, close the faucet and check the water pressure in one hour. This will allow enough time for the tank to fill.
If you’re still experiencing slow water pressure and it has been over six months since changing the filter, we recommend changing your filter.
The best flow rate will be 0.75 GPM when the tank is completely full. The flow rate may slow as the water is depleted from the tank.
8. How do I know I connected the
tubing all the way?
A visual way to ensure you are inserting the tubing all the way into the quick connect is to put a mark 5/8”
up from the end of the tube; the tube should be inserted that far. After installing the system and flushing,
leaks may not appear. Ensure your system is not leaking by checking post-installation periodically. Recheck
an hour after the tank is filled with water, which takes about an hour.
9. Can I install the cartridges in
the wrong stage?
No, the guides to help with insertion can only fit in their correct cartridge slot.
10. How do I know I connected the
filter correctly?
The cartridge handle should be horizontal and handle labeling should be right side up.
11. Why is my water grey or
black?
Carbon fines can be present in your water when new filters are first installed and will go away after the
flushing cycle.
12. How often do I have to replace
the cartridges (filters) and the R. O. Membrane?
Stage 1 (Carbon Block) and Stage 3 (Advanced Carbon Block) filter cartridges should be replaced every 6 months or up to 365 gallons. Stage 2 (SmartFlow® Membrane) should be replaced every 12 months depending on usage and water quality. For homes with higher water usage and/or poorer water quality, you may need to replace your SmartFlow® Membrane sooner than every 12 months. Stage 4 (Remineralizer) should be replaced every 6 months depending on usage and water quality.
To eliminate the hassle of knowing when to replace your filter, sign up for our Water for Life auto-ship program. Get free shipping, discounts on filter replacements, and an extended product warranty by joining Water for Life®.
13. Does the SmartFlow® Reverse
Osmosis remove fluoride?
Yes. The SmartFlow® Reverse Osmosis is WQA tested and certified to reduce 90% of fluoride from your drinking
water.
14. Does the SmartFlow® Reverse
Osmosis remove arsenic?
Yes. The Aquasana SmartFlow® Reverse Osmosis system is WQA tested and certified to reduce 96% of pentavalent
arsenic from your drinking water. It will not convert trivalent arsenic to pentavalent arsenic.
15. How many gallons of water does
the SmartFlow® Reverse Osmosis holding tank store?
The total volume of the holding tank is 3.2 gallons. Volume is based on your inlet water pressure. So, the
gallons in the tank can vary from 1.4-3.2 gallons at any given time.
16. What is the flow rate of the
Aquasana SmartFlow® Reverse Osmosis?
The SmartFlow® Reverse Osmosis Under Sink Water Filter flows at a rate of 0.8 gpm (gallons per minute).
17. How does reverse osmosis
work?
Reverse osmosis is an incredibly effective method of filtering water, and it works by pushing water through a semi-permeable membrane (a porous block) at a high pressure to remove contaminants. As this pressurized water passes through the membrane, contaminants are left behind and only clean water passes through.
Our reverse osmosis system uses this process, in conjunction with a series of other filters, to increase effectiveness and retain healthy minerals that are often lost during the RO process. Water first passes through our Carbon Block to remove chlorine, taste and odor. Then, the system uses reverse osmosis filtration by pushing water through a semi-permeable SmartFlow® membrane at a high pressure to remove dissolved solids smaller than 1 micron. Next, our Advanced Carbon Block filter uses ion exchange and sub-micron filtration to remove heavy metals, chemicals including herbicides and pesticides, and other contaminants. Finally, our RO system uses remineralization technology to restore healthy minerals like calcium while improving the pH balance and alkalinity of water for exceptional taste.
18. Is this purified water?
Yes. The Aquasana SmartFlow® Reverse Osmosis water filter uses reverse osmosis to effectively purify your
drinking water. In addition to reverse osmosis, the system also uses selective filtration to reduce 90 total
contaminants, plus it includes a remineralizer designed to put back healthy minerals that are removed in the
reverse osmosis process.
19. What does TDS mean?
TDS, or Total Dissolved Solids, is the amount of dissolved minerals and metals present in water. TDS meters tell you the concentration of dissolved minerals and metals, but they are not an accurate measurement for contamination. Aquasana products reduce and remove harmful TDS like lead but selectively retain or replace healthy dissolved solids like calcium. Read more about TDS here.
The SmartFlow® Reverse Osmosis comes standard with a 6-month Remineralizer designed to replace healthy minerals lost in the reverse osmosis process.
20. Is reverse osmosis water good
for you?
Using a reverse osmosis water filter is a great way to remove harmful contaminants like lead, mercury,
asbestos, and other impurities that have a range of health concerns. However, it's important to note that
the reverse osmosis process also tends to remove healthy minerals from your water as well, such as calcium.
To ensure you get the maximum health benefits from your water, make sure to use a filter that has a
remineralizer, which restores the healthy minerals lost during reverse osmosis.
21. How do I install this RO system to a sink with a garbage disposal?
When installing your new water filtration system, it's critical for the system to be able to drain wastewater
effectively. Do not install the drain connector onto the same drainpipe as the garbage disposal as this can cause
blockages to the drain line of the water filtration system and could lead to water coming out of the air gap adapter (if
using). If the drain line must be installed on the same line as the garbage disposal, do not use the drain connector
included. Instead, a garbage disposal adaptor is recommended and can be purchased separately. There are many types of
these adapters available. An example of this type of adapter can be found on Amazon by clicking here.