Aquasential® Smart High Efficiency Twin Water Softener
Get an uninterrupted supply of soft water at every tap. From cost savings and a cleaner home to healthier-feeling skin and hair, you’ll enjoy all the benefits with this smart dual tank water softener system. Plus, with advanced smart features and hassle-free maintenance, softening is always convenient and customizable.
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.
24/7 Performance
Easy Troubleshooting
Smart Savings
Remote Control
The Power of a Smart Dual-Tank Water Softener

Uninterrupted Softening
Unmatched Reliability
Customized Softness
Flexible Fit
Twin Tank Water Softener System Options
Proportional Brining
Increase efficiency and reduce salt usage by allowing your twin tank water softener to only regenerate the part of the resin bed that has been exhausted.
Aqua-Sensor®
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 hard water softener 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 comfort and 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 Culligan Aquasential Smart High Efficiency Twin 9″ and Twin 9″ Outdoor Water Softeners have been tested and certified by WQA against NSF/ANSI Standard 372, CSA B483.1, NSF/ANSI Standard 44 for the effective reduction of hardness (calcium and magnesium), barium and radium 226/228, as verified and substantiated by test data.
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.

More Reasons to Choose a Culligan Water Softener
01
Upgrade Your Clean
Soft water means no more mineral residue on dishes, clothes, showers and more so you can enjoy an easier, longer-lasting clean.
02
Lowered Household Costs
Soft water needs 50% less laundry detergent and 29% less shampoo to achieve your desired results.
03
Durable Home Appliances
Protect dishwashers, washing machines, and water heaters from hard water damage, leading to fewer repairs and replacements.
04
A Salon-Style Shower
See the soft water difference by eliminating mineral buildup and enjoy shinier, healthier-looking hair and radiant, moisturized skin.
Our Environmental Impact
Efficient Systems
Earth-Conscious Innovation
Global Water Leadership
Specifications
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.
9” | 10” | 12” | 14” |
|---|
9” | 10” | 12” | 14” | |
|---|---|---|---|---|
Product DImensions Product Details | ||||
A - Total Height | 56” | 62” | 60” | 73” |
B - Resin Tank Height | 48” | 54” | 52” | 65” |
C - Resin Tank Diameter | 9” | 10” | 12” | 14” |
D - Brine Tank Width/ Weight | 18” 375 LB | 18” 375 LB | 18” 375 LB | 24” 600 LB |
E - Brine Tank Height | 43” | 43” | 43” | 42” |
Installation & Maintenance
Convenient Service Plans
85+ Years of Experience
Unwavering Local Support
Flexible Installation Areas
Recommended Videos

Water Softener Installation: What to Expect

Water Softener Maintenance
Questions & Answers
- Submitted Questions
- FAQs
Ratings & Reviews
5.0
Easy decision to upgrade

Let’s Get Started
Start enjoying the benefits of soft water in your home with help from your local Culligan water experts.



