Aquasential® Smart High Efficiency Municipal Water Softener

With this all-in-one water softener for your home, great water is always at your fingertips. Enjoy the benefits of soft water plus better-tasting, better-smelling water from built-in chlorine filtration. Get even more convenience and control from smart features like water conservation tracking and salt-refill alerts.

Ready for a 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.

Get More From Your Home Water Softener

Complete Control in
the Palm of Your Hand


Timely Insights

Time for a salt refill? Need water updates while you’re out of town? With the Culligan Connect App, you always have access to maintenance alerts, Away Mode and more.


Hassle-Free Maintenance

Don’t think twice about service. Your smart home water softener system can automatically notify the Culligan team of issues and even enables remote troubleshooting.


Smart Water Use

Set water usage goals and track progress right from your phone. Plus, take the details on the go with Wi-Fi-connected features.


Minimized Waste

Get smart about your soft water. Set your home water conditioner on bypass using our app to avoid waste in areas that don’t need soft water — like your lawn.

The Water Softener System That Does It All

Eliminates Chlorine Odor

Activated carbon media absorbs chlorine taste and odor to deliver a better experience for drinking, cooking, cleaning and bathing.

Flexible Fit

Make water softening work for your home. A variety of options let you put your system in your laundry room, basement, garage or outside.

Customized Softness

With the Dial-a-Softness® control, you can determine just how soft you’d like your water to feel.

Advanced Monitoring

Exclusive to Culligan, the Soft-Minder® meter monitors daily water use and provides advanced home water conditioner system diagnostics.

Advanced Options for Efficiency and Convenience

Choose from four softener sizes for indoor or outdoor installation. Not sure what you need? Your local Culligan water expert will provide recommendations based on your water flow, usage, hardness and pipe size. They may also recommend additional product options to address any other water issues or needs you may have.

Proportional Brining

Increase efficiency and reduce salt usage by allowing your home water softener to only regenerate the part of the resin bed that has been exhausted.


This patented technology adjusts to changes in water hardness so it only regenerates as needed, enabling more efficient operation.

Salt Level Monitor

Effortlessly maintain your home water conditioner system with a monitor that tells you how many days of salt are remaining in your tank, with notifications available through the Culligan Connect App.

Leak Sensor

Experience complete peace of mind with an external leak sensor that can detect leaks around your tank as well as nearby water-using appliances. If detected, you’ll receive alert notifications right through our app.


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 Aquasential Smart High-Efficiency Municipal Water Softeners have been tested and certified by WQA against NSF/ANSI/CAN Standard 372, CSA B483.1, and NSF/ANSI Standard 44 for the effective reduction of hardness (calcium and magnesium), barium and radium 226/228, and NSF/ANSI Standard 42 for the effective reduction of Chlorine Taste and Odor, as verified and substantiated by test data​
Learn more about product certifications here.

Ready To Take the Next Step?

It’s time to choose the perfect water softener for home use. Schedule a free, in-home consultation and water test to get one step closer. 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


Efficient Systems

Culligan high-efficiency water softeners are engineered to use less salt and water than standard softeners.


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® conditioner tank and Cullex® resin: Lifetime
  • Aquasential Smart High Efficiency circuit board, control valve body (excluding internal parts), salt storage container, brine valve and all its component parts: 10 years
  • Soft-Minder® meter, Smart Brine probe, Salt Level Monitor and Aqua-Sensor probe: Five years
  • Entire conditioner: One year

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






A – Total Height





B – Resin Tank Height





C – Resin Tank Width





D – Brine Tank Width/ Weight

16” 250 LB or 18” with 375 LB Brine Tank

18” with 375 LB Brine Tank

18” with 375 LB Brine Tank

24” with 600 LB Brine Tank

E – Brine Tank Height










Total Hardness Maximum

15 gpg

15 gpg

15 gpg

15 gpg

Resin Volume in
Cubic Feet

Cullex® 8% Resin, 1.0 ft³ or Cullex® 10% Resin, 1.0 ft³

Cullex® 8% Resin, 1.5 ft³

Cullex® 8% Resin, 2.0 ft³

Cullex® 8% Resin, 3.0 ft³

Peak Service
Flow Rate in Gallons Per Minute

10.9 gpm @ 15 psi 41.3 Lpm @ 103.4 kPa

11.0 gpm @ 15 psi 41.6 Lpm @ 103.4 kPa

12.6 gpm @ 15 psi 47.7 Lpm @ 103.4 kPa

12.8 gpm @ 15 psi 48.5 Lpm @ 103.4 kPa

Efficiency at
Rated Dosage²

4,751 gr/lb @ 4 lb salt dosage

5,073 gr/lb @ 6 lb salt dosage

4,052 gr/lb @ 7 lb salt dosage

4,052 gr/lb @ 10.5 lb salt dosage

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.

How is the Smart HE Municipal Water Softener different from a standard water softener?

Yes. Water softening systems are just one part of a complete water treatment approach. Your local Culligan water expert can recommend other solutions, such as a reverse osmosis drinking water filtration system, that will complement your softener based on your concerns and your water test results.

Do I need a water softener for my home if I have city water?

Your local Culligan water expert can help determine what size system you need by assessing factors like hardness of your water, pipe size, household water usage and flow rate. We recommend scheduling a free, in-home consultation to understand your water and get custom recommendations.

When it comes to city water vs. well water, the biggest factor in determining hardness is the likelihood of your water source encountering, absorbing and carrying calcium and magnesium — and how much. Although these minerals can be present in both water types, they’re especially common in well water.

The water softener is essential in our house.

I’m grateful for the Culligan product we have!

Amanda and Brooke, PA 

Culligan is always willing to go the extra step to help me.

Everyone from delivery to the office people takes time with each question.

Gail, ID

I really like the smart app that allows me to monitor from my phone.

Very reliable and trusted brand, local office and salesperson.

Kevin and Yvonne, ON

Let’s Get Started

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