Aquasential® Smart High Efficiency Arsenic Reduction Water Filter

Tackle potentially harmful arsenic levels and get cleaner, safer water with the only certified whole house arsenic water filter on the market.1 Plus, enjoy the convenience of advanced smart features and system alerts that can notify both you and your local Culligan® expert if maintenance is needed.

Ready for a whole home water upgrade? Arsenic can’t be detected through tastes or smells, but your local Culligan water experts can help diagnose your water problems and find the right solutions for your municipal or well water. Schedule your free, in-home water test or phone consultation to get started.

Smart Technology Meets Water Safety

Water You Can Count On


On-the-Go Insights

Manage your system with ease from anywhere using the Culligan Connect App right on your phone.


Reliable Notifications

Enjoy peace of mind with remote troubleshooting and automatic alerts to both you and your local service team when your system needs maintenance.


Advanced Monitoring

Make maintenance easy with alerts when the Cull-AsX53 filter media needs replacement.


Practical Sustainability

Keep track of your home’s water usage and set conservation goals.

Explore Cutting-Edge Features

Maximum Efficiency

The high-absorption Cull-AsX53 media provides maximal arsenic reduction capacity for Type III and Type V arsenic.

High-Tech Tracking

The Soft-Minder Meter® is a Culligan-exclusive monitor that records daily water use and provides advanced system diagnostics.

Natural Cleaning

Filtration is chemical free, relying on Cull-AsX53 filter media and requiring no regeneration chemicals, salts or additives.

Reliable Design

The high-impact Quadra-Hull® Tank has a four-layer design that resists UV rays, rust and corrosion.

Whole House Arsenic Filter Options

Innovation doesn’t stop there. Additional product features and options are available to upgrade your arsenic water filter.

Automatic Bypass Valve

Appreciate the convenience of putting your system in bypass for any uses that don’t need filtered water. Activate it right from your device or the Culligan Connect App.

Optional Leak Sensor

Feel comforted knowing you’ll get alerts if there are any leaks from your system or nearby 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 High Efficiency Arsenic 12″, 14″, and 16″ Filters and the Aquasential Smart High Efficiency Arsenic 12″, 14″, and 16″ Outdoor Filters have been certified by IAPMO against NSF/ANSI Standard 372, CSA B483.1, and NSF/ANSI Standard 53 for the effective reduction of total arsenic (pentavalent and trivalent) as verified and substantiated by test data. Learn more about product certifications here.

Ready To Take the Next Step?

Schedule a free, in-home consultation and water test to get one step closer to the soft water your family deserves. With options to buy, finance or rent, your local Culligan water expert will make recommendations based on your home, water usage, test results and any other concerns.

Our Environmental Impact


Zero-Chemical Processes

This system was developed to use natural processes and no chemicals to benefit the environment.


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.


Culligan products are reliable and long-lasting, with industry-leading warranties.

  • Quadra-Hull tank: Lifetime
  • The Aquasential Smart High Efficiency GBX circuit board, control valve body, excluding internal parts and the Fiberglass Conditioner Tank, if so equipped: Ten years
  • Soft-Minder meter: Five-year warranty
  • Entire system: One-year warranty

To access customer support, call your local Culligan water expert or​ fill out this Maintenance & Support form​.

Product Specifications




Media Tank Size

12” x 52”

14” x 65”

16” x 65”

Overall Height




Water Pressure Limits

20 – 120 psi

20 – 120 psi

20 – 120 psi

Temperature Limits

33° – 120° F

33° – 120° F

33° – 120° F

Electrical Requirements

24VDC, 1W/21.6 Watts

24VDC, 1W/21.6 Watts

24VDC, 1W/21.6 Watts


Product Details




Rated Service Flow @ Pressure Drop

5 gpm @ 2 psi

7.5 gpm @ 5 psi

10.0 gpm @ 10 psi

Drain Flow, Maximum²

7.0 gpm

10.0 gpm

11.5 gpm

pH Limitation




Arsenic Filtration (Type III & Type V)

Up to 100 ppb

Up to 100 ppb

Up to 100 ppb

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 water softener with installation and maintenance, assisting with needs such as salt refills, system sanitation and more. They can even monitor your system proactively for issues, offering you further peace of mind.


Convenient Service Plans

Sign up for our regular salt delivery and maintenance plans so you never have to worry about your system’s 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 knows your local water 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 main water piping, a drain and an electrical outlet — in the laundry room, basement, garage, or outside.

Play Video

Water Softener Installation: What to Expect

Learn everything you need to know about getting started with your smart water softener.

Is the Arsenic Reduction Water Filter a good solution for well water?

Yes. This arsenic water filter works for well water, where arsenic can sometimes be an issue. If you are dealing with more than one well water problem, you may require multiple solutions, such as a reverse osmosis system or a water softener. With a free, in-home water consultation, your local Culligan water expert can help determine what systems your home may need.

Arsenic leaves no taste, smell or visual signs in your water. The only way to know if there is arsenic in your water is through a water test. We recommend homeowners check their local water quality report for more information, as well as getting your water tested.

This system should not affect taste or smell. If you have issues with unpleasant odors or tastes, other Culligan filters can help. It is recommended to schedule a free water consultation to find out more about your water problems and determine the right solution.

Yes. This system’s chemical-free filtration makes it environmentally friendly. It uses the Cull-AsX53 filter media and doesn’t require regeneration chemicals, salts or additives.
How does arsenic get into my water supply?

Arsenic naturally occurs in the earth’s mineral deposits and dissolves in groundwater. Some areas have higher levels of arsenic while other areas have none.

The high-absorption Cull-AsX53 media filter in the system provides maximal arsenic reduction capacity for Type III and Type V arsenic. This system is the only certified whole house arsenic reduction filter on the market.

This system is certified for arsenic reduction specifically, but other Culligan filters can help address issues such as unpleasant tastes and smells, stains on dishes and fixtures or clogged appliances. Schedule a free water consultation with a local Culligan water expert to find out more about your water problems and see if your home may benefit from multiple systems.

A properly sized system should not significantly impact your water flow or pressure.

My problem with high arsenic levels was taken care of …

installer was super informative and extremely helpful.

— Casimer H, MN

Quality product and excellent service.

I’m relieved to know my family and I are drinking safe purified water and thank the Culligan team for educating us on their filtration system.

— Tim G, TX

We can now say with confidence that our water is clean and safe to use.

The team worked as true professionals with great attention to detail.

— Nugzar G, PA

Let’s Get Started

Start enjoying the benefits of soft water in your home with help from your local Culligan water experts.