Aquasential® Smart Reverse Osmosis Drinking Water Filtration System
Meet the world’s most efficient reverse osmosis (RO) water system¹ — certified to reduce 12 times more contaminants than the leading standard pitcher filter.² With features like filter change alerts, water quality tracking and RO water with the touch of a button, enjoy peace of mind about your water quality.
Ready for a drinking water upgrade? Your local Culligan® water experts can help determine the right solution for your municipal or well water. Schedule your free, in-home water test or phone consultation to get started.
SCHEDULE FREE WATER CONSULTATION
- Product Details
- Benefits
- Specifications
- Installation & Maintenance
- Questions & Answers
- Ratings & Reviews
Select and jump to using the menu below.
Get the Best Water Filter for Your Sink
An Elevated, Wi-Fi-Enabled Smart RO
1
Peace-of-Mind Monitoring
It’s easy to stay on top of filter changes and service needs with notifications from your phone. Plus, worry less knowing your local Culligan team can monitor your system's performance remotely.
2
Wellness-Focused Features
Set water consumption goals and record your progress, with notifications to help you make sure you’re getting the hydration you need.
3
Worry-Free Water Quality
Our smart water filter tracks the contaminants reduced in your water, so you can feel confident you’re getting water you can trust.³
4
Save Money (and the Planet)
See money and plastic-waste savings from eliminating single-use bottles by using a water filter for your sink instead.
Get the Best Water Filter for Your Sink
An Elevated, Wi-Fi-Enabled Smart RO
Save Money (and the Planet)
See money and plastic-waste savings from eliminating single-use bottles by using a water filter for your sink instead.
Peace-of-Mind Monitoring
It’s easy to stay on top of filter changes and service needs with notifications from your phone. Plus, worry less knowing your local Culligan team can monitor your system's performance remotely.
Wellness-Focused Features
Set water consumption goals and record your progress, with notifications to help you make sure you’re getting the hydration you need.
Worry-Free Water Quality
Our smart water filter tracks the contaminants reduced in your water, so you can feel confident you’re getting water you can trust.³
Save Money (and the Planet)
See money and plastic-waste savings from eliminating single-use bottles by using a water filter for your sink instead.
Peace-of-Mind Monitoring
It’s easy to stay on top of filter changes and service needs with notifications from your phone. Plus, worry less knowing your local Culligan team can monitor your system's performance remotely.
Explore These First-Rate Features
Certified for Safety
Rely on filtered drinking water from a system certified to reduce over 70 contaminants.
Best-in-Class Efficiency
Reduce water usage and water bills with a system that is three to five times more efficient than other leading RO systems.
Instant Water Quality Data
Check your water quality from the Culligan Connect app, your smart faucet display or your ClearLink PRO™.
Fits Your Home
Culligan RO systems can go under your sink, in your basement, garage, crawlspace or other areas.
Explore These First-Rate Features
Comprehensive Contaminant Reduction
Customize your Culligan water filter for your sink to your needs with up to seven stages of filtration and 14 filter options. Our smart RO system is certified to reduce over 70 contaminants, including viruses, bacteria, mercury, arsenic, PFOA/PFOS and lead, as well as 15 emerging contaminants.
View All Targeted Contaminants
- Arsenic
- Viruses
- Lead
- Fluoride
- Chlorine
- Bacteria
- Pesticides
- PFOA/PFOS
- Calcium
- Radium
Customized Filtration to Fit Your Needs
All Culligan RO systems include a sediment/carbon pre-filter, RO membrane and a post-filter, providing comprehensive protection against a broad array of issues, with a choice of one- or two-year filters. You can also enhance your system with these options:
Total Defense Cartridge
Add filtration for pharmaceuticals, mercury, VOCs (volatile organic compounds), pesticides and more; you can also pair with the Mineral Boost Cartridge.
Advanced Post-Filter
Expand protection to address bacteria and viruses; this filter is a particularly good option for well water.
Arsenic Filter
Reduce arsenic in your water in areas where this issue is more significant.
Mineral Boost Cartridge
Add natural calcium minerals back into water for great-tasting, optimally alkaline, pH-balanced water.
Premium Faucet
Choose from four modern faucet designs in brushed nickel, chrome, matte black and bronze, and check real-time insights into water quality and filter life on the electronic display.
ClearLink PRO™
Use your existing faucet to switch between RO and tap water at the touch of a button. The display also shares information on filter life and water quality.
Culligan Connect App
Download the Culligan Connect App to get the most out of your system with alerts and in-depth information on water consumption, contaminants reduced, savings and more.
External Leak Sensor
All our smart ROs have auto-shut off if a leak is detected. Add the external leak sensor for more protection against leaks in nearby pipes or water-using appliances.
100% Satisfaction Guarantee
If you are dissatisfied with your Culligan product for any reason within 30 days of your purchase, Culligan will remove the product and refund the purchase price.
Third-Party Certified
The Culligan Aquasential Smart Reverse Osmosis System is tested and certified by WQA to NSF/ANSI 58, NSF/ANSI 42, NSF/ANSI 53, NSF/ANSI 401, NSF/ANSI 372, CSA B483.1 and NSF Protocol P231 and conforms to these standards for specific performance claims as verified and substantiated by test data. Learn more about product certifications here.
Award-Winning Product
In 2022, our smart reverse osmosis water system was highly rated by experts at House Beautiful, winning a Live Better Award recognizing “innovative homewares that make life a breeze.”
Ready To Take the Next Step?
Schedule a free, in-home consultation and water test to get one step closer to the enhanced hydration your family deserves. With options to buy, finance or rent, your local Culligan water experts will make recommendations based on your home, water usage, test results and any other concerns.
Schedule Free Water Consultation
Ready To Take the Next Step?
Schedule a free, in-home consultation and water test to get one step closer to the enhanced hydration your family deserves. With options to buy, finance or rent, your local Culligan water experts will make recommendations based on your home, water usage, test results and any other concerns.
Schedule Free Water Consultation
More Reasons to Choose a Culligan Under-Sink Water Filter
01
Dependable, Long-Lasting Products
Experience the benefits of having a water filter for your sink that’s tested against rigorous standards and built for longevity, with long-lasting warranties.
01
Dependable, Long-Lasting Products
Experience the benefits of having a water filter for your sink that’s tested against rigorous standards and built for longevity, with long-lasting warranties.
01
Durability
02
Design
Enjoy a sleek, modern look and space-saving design that has flexibility to fit in multiple different spaces in your home.
02
Design
03
Sustainability
Avoid the hassle of single-use plastic bottles while also helping the environment by minimizing waste.
03
Sustainability
04
Low Maintenance
Innovative design enables extra-long filter life up to two years, for a nearly unlimited supply of worry-free drinking water with little maintenance required.
04
Low Maintenance
Why Choose a Culligan Smart RO?
Why Choose a Culligan Smart RO?
Why Choose a Culligan Smart RO?
Why Choose a Culligan Smart RO?
Our Environmental Impact
40 Billion+ Bottles Saved
Culligan water filtration solutions benefit the environment by reducing single-use plastic bottle waste and saving billions of bottles each year.
Earth-Conscious Innovation
We prioritize sustainability in designing and developing new products.
Global Water Leadership
Culligan has joined the CEO Water Mandate and the Water Resilience Coalition to lead the way in positive, global water stewardship.
Specifications
Culligan products are reliable and long-lasting, with industry-leading warranties.
- Molded system manifold: Lifetime warranty
- RO tank and all other parts of the RO system: 10-year warranty
- Faucet with display, rechargeable battery pack, PCBs and associated LEDs and displays: Five-year warranty
- Filters and membranes: One-year warranty
To access customer support, call your local Culligan water expert or fill out this Maintenance & Support form.
Download Owner’s Guide
Please select chart from the dropdown below:
Product Specifications | Aquasential® Smart Water Filter |
|---|---|
Length x Width x Height | 19.0 in x 5.7 in x 17.8 in |
Power Specifications | 12 VDC, 20W |
Rated System Operating Pressure | 40 - 120 psi (276-827 kPa) |
Inlet Water Temperature | 33° - 100° F |
Daily Production Rate4 | 75 gpd4 |
Recovery Rate | 52.8% |
Storage Tank Capacity | 3 Gallons |
Installation & Maintenance
Our unmatched, white-glove service doesn’t stop at your free water test and consultation. Your local Culligan water experts will be there to help for the entire life of your system from installation to ongoing maintenance, assisting with needs such as filter changes, system sanitation and more. They can even monitor your smart system proactively for any issues, offering you further peace of mind.
Convenient Service Plans
Your local Culligan water team can make maintenance hassle-free with optional service packages that help ensure your smart RO is always operating at peak performance.
85+ Years of Experience
With over 85 years of water treatment experience, you can count on us to provide the solutions and service you need anytime.
Unwavering Local Support
Our team of experts is part of your local community and is there to offer support and services right in your neighborhood.
Flexible Installation Areas
Your system can be installed anywhere you have access to a cold water line and drain — under the sink, in your basement, garage, crawlspace and more.
Reverse Osmosis Water System Installation: What to Expect
Reverse Osmosis Water System Installation: What to Expect
How to Replace RO Filters
How to Replace RO Filters
Reverse Osmosis Water System Installation: What to Expect
Play Video
How to Replace RO Filters
Play Video
Installation & Maintenance
Our unmatched, white-glove service doesn’t stop at your free water test and consultation. Your local Culligan water experts will be there to help for the entire life of your system from installation to ongoing maintenance, assisting with needs such as filter changes, system sanitation and more. They can even monitor your smart system proactively for any issues, offering you further peace of mind.
Flexible Installation Areas
Your system can be installed anywhere you have access to a cold water line and drain — under the sink, in your basement, garage, crawlspace and more.
Convenient Service Plans
Your local Culligan water team can make maintenance hassle-free with optional service packages that help ensure your smart RO is always operating at peak performance.
85+ Years of Experience
With over 85 years of water treatment experience, you can count on us to provide the solutions and service you need anytime.
Unwavering Local Support
Our team of experts is part of your local community and is there to offer support and services right in your neighborhood.
Flexible Installation Areas
Your system can be installed anywhere you have access to a cold water line and drain — under the sink, in your basement, garage, crawlspace and more.
Convenient Service Plans
Your local Culligan water team can make maintenance hassle-free with optional service packages that help ensure your smart RO is always operating at peak performance.
Reverse Osmosis Water System Installation: What to Expect
Reverse Osmosis Water System Installation: What to Expect
How to Replace RO Filters
How to Replace RO Filters
Reverse Osmosis Water System Installation: What to Expect
Play Video
How to Replace RO Filters
Play Video
Questions & Answers
Do I have to drill a hole in the counter to add an RO faucet?
No – with the ClearLink PROTM wireless accessory, you can use your existing faucet and switch between RO and tap water with the touch of a button. Culligan smart RO systems are the only water filters for your sink that give you the option to use your existing tap. Best of all, with the ClearLink PRO, you don’t need to drill additional holes in your countertop.
How does a reverse osmosis water system work?
RO systems filter contaminants from water by forcing them through a semipermeable membrane to separate contaminants as small as a single atom. Some of these contaminants addressed in this process include lead, mercury and chromium, among many others. Most RO systems also include additional stages of filtration including sediment filters, carbon filters and other advanced options for additional filtration capability.
How big is the system?
The system is 19.0 inches in length x 5.7 inches in width x 17.8 inches in height.
Does this RO system work for well water?
Yes, our smart reverse osmosis system is not only a highly comprehensive method for treating drinking water, capable of addressing a wide range of potential contaminants, but it also offers several distinct advantages for well water users. Particularly for well applications, where concerns about viruses and bacteria are more prevalent, the system’s P231 certification for reducing these issues provides reassurance. Moreover, given that well water conditions can fluctuate due to seasonal and environmental factors, the Aquasential Smart RO ensures your peace of mind by offering filter change alerts, water quality monitoring, and maintenance notifications in collaboration with your local Culligan team.
Ratings & Reviews
Service is always friendly and efficient.
The process was easy, and now I have the best drinking water available. I have always been satisfied with my Culligan service.
— Brigitta M, WI
The Culligan reverse osmosis system is great.
The technician was professional, courteous, completely knowledgeable and went out of his way to do a fantastic job.
— Dale K, MN
Very reliable and trusted brand, local office and salesperson.
Really like the smart app that allows me to monitor from my phone.
— Kevin T, ON
The Culligan reverse osmosis system is great.
The technician was professional, courteous, completely knowledgeable and went out of his way to do a fantastic job.
— Dale K, MN
Very reliable and trusted brand, local office and salesperson.
Really like the smart app that allows me to monitor from my phone.
— Kevin T, ON
Service is always friendly and efficient.
The process was easy, and now I have the best drinking water available. I have always been satisfied with my Culligan service.
— Brigitta M, WI
The Culligan reverse osmosis system is great.
The technician was professional, courteous, completely knowledgeable and went out of his way to do a fantastic job.
— Dale K, MN
Very reliable and trusted brand, local office and salesperson.
Really like the smart app that allows me to monitor from my phone.
— Kevin T, ON
Service is always friendly and efficient.
The process was easy, and now I have the best drinking water available. I have always been satisfied with my Culligan service.
— Brigitta M, WI
The Culligan reverse osmosis system is great.
The technician was professional, courteous, completely knowledgeable and went out of his way to do a fantastic job.
— Dale K, MN
Let’s Get Started
Start enjoying the benefits of trustworthy water in your home with help from your local Culligan water experts.
Schedule Free Water Consultation
Let’s Get Started
Start enjoying the benefits of trustworthy water in your home with help from your local Culligan water experts.
Schedule Free Water Consultation
You May Also Like
With a variety of options to choose from, it’s simple to find the right reverse osmosis filtration system for your home’s drinking water needs.
Aquasential® Reverse Osmosis Drinking Water Filtration System
Upgrade your water with highly customized filtration and advanced features.
Aquasential® Tankless Reverse Osmosis System
Get an unlimited supply of filtered water with a compact unit for various spaces.
AC-30 Good Water Machine® Under Sink Water Filtration System
Experience high-quality hydration with four-part filtration right on tap.
Compare All RO Water Filters
Frequently Bought Together
Your local Culligan water experts can provide recommendations based on your home’s unique water problems.
Top Pick
Aquasential® Smart HE Water Softener System
Our most advanced softener offers hassle-free control through our app.
High Efficiency Water Softener
Enjoy soft water while maximizing resources and savings.
Top Pick
Aquasential® Smart High Efficiency Water Filter
Get customizable filtration with convenient smart features.