New Product

SimplySoft® 40,000 Grain Softener

4.8 out of 5 Customer Rating

Reduces minerals that cause hard water, providing softer, scale-free water from every tap in your home.

Availability: 
  • In Stock
100381840 WH-SF40
Available Upgrades
Add Low Maintenance Pre-Filter
$298.00 +$119.20
Add Easy Connect Kit
$98.00 +$39.20
SALE PRICE
$639.20 $1,598.00 MSRP

Our SimplySoft® 60,000 Grain Softener is perfect for larger households and those seeking enhanced performance Shop Now.
60% OFF WHOLE HOUSE SYSTEMS Limited Time Only!

Experience the Luxury of Soft Water

Perfect for Every Household

With a 40,000 grain capacity, this system ensures a steady supply of soft water for households of all sizes.

Whole Home Protection

Shield your pipes and expensive appliances from the effects of hard water.

Cost Savings

Save up to $497 annually* by improving appliance efficiency, reducing repairs, and cutting soap and cleaning product costs.

Reduce Spots & Soap Scum

Get spotless glasses, dishes, and shower doors by reducing scale.

Softer Skin & Hair

Experience the luxury of soft water that's gentle on your skin and hair, reducing irritation and preventing breakage.

Cleaner, Brighter Clothes

Prevent fading and wear in your clothing and linens so they look great and last longer.

How It Works

Superior Softening

Our water softeners work by reducing hard minerals in your water through a process called ion exchange.

Superior Filtration

Our water softeners work by reducing hard minerals in your water through a process called ion exchange.

Innovative Technology

Water You Can Trust

IAPMO certified to NSF/ANSI Standard 44 for the reduction of water hardness and to CSA B483.1.

Fully Customizable

Take control with customizable settings, allowing you to tailor the system to your specific needs.

Efficient Design

Uses 50% less salt and 28% less water than conventional softeners.**

User-Friendly

LCD display is easy to set and displays time, regeneration modes, and gallons remaining.

Overflow Protection

Included Brine Safety Valve safeguards against overflow.

Included Pre-Filter

Prevents rust, sediment, and silt from clogging the softener unit.

warranty
This system comes with a 5/10-Year Limited Warranty and a 90-Day Satisfaction Guarantee so you can be confident in your purchase.
IAPMO certified to NSF/ANSI Standard 44 for the reduction of water hardness and to CSA B483.1. See claims specified on the Performance Data Sheet.

Whole Home Softened Water

Introducing Aquasana's SimplySoft® 40,000 Grain Softener, ideal for homes with up to 5 people and 4 bathrooms.

For use with either city or well water, SimplySoft® uses ion exchange to effectively reduce hard water minerals, ensuring consistently soft, scale-free, and spotless water throughout your home.

Our SimplySoft® softeners provide benefits throughout your home:

  • Save up to $497 annually* by improving appliance efficiency, minimizing repairs, and reducing soap and cleaning product costs.
  • Protect your pipes and expensive appliances including your water heater and dishwasher from the effects of hard water.
  • Get spotless glasses, dishes, and shower doors by reducing scale.
  • Experience the luxury of soft water that's gentle on your skin and hair, reducing irritation and helping to prevent breakage.
  • Prevent wear and fading in your clothing and linens so they look great and last longer.

The SimplySoft® 40,000 Grain Softener features a fully customizable control panel, enabling you to tailor the system to your specific needs. The user-friendly LCD display is easy to set and displays time, regeneration modes, and gallons remaining.

This system is IAPMO certified to NSF/ANSI Standard 44 for the reduction of water hardness and to CSA B483.1. Designed with efficiency in mind, our SimplySoft® softeners use 50% less salt and 28% less water than conventional softeners.**

The included Pre-Filter prevents rust, sediment, and silt from entering your water supply and clogging the softener unit.

This system comes with a 5/10-Year Limited Warranty and a 90-Day Satisfaction Guarantee so you can be confident in your purchase.

Upgrade to our Low Maintenance Pre-Filter that lasts 3X as long for fewer replacements. An Easy Connect Kit is also available and includes two 24” long flexible stainless steel hoses that make installation easier.

* Potential savings based on Water Quality Research Foundation Battelle Institute Study

** Based on metered operation mode compared to standard time-based regenerated softeners.

System Operating Temp Range: 40-100°F
System Max Operating Pressure: 125 psi
specifications
  • Length:
  • Height:
  • Depth:
  • Rated Flow Rate (GPM):
  • Peak Flow Rate (GPM):
  • Grain Capacity:
  • Salt Storage Capacity:
  • Max Hardness (GPG):
Base Unit
  • Please see chart below
  • 43"
  • 20"
  • 11.02
  • 15.5
  • 40,000
  • 230 pounds
  • 200 gpg
SimplySoft® 40,000 Grain
SimplySoft® 40,000 Grain + LM Pre-Filter
SimplySoft® 40,000 Grain + Easy Connect
SimplySoft® 40,000 Grain + LM Pre-Filter + Easy Connect

20" Pre-Filter Replacement – 3 Pack
Replace every 2 months

Prevents dirt and sediment particles from entering and clogging the main filter unit

Low Maintenance Pre-Filter Replacement
Replace every 6 months

Reduces any remaining sediment and organic particles, while lasting 3X longer

Help & Support
  • Learn about our Whole House SimplySoft® Softeners
  • How to Install a Whole House SimplySoft® Grain Softener
  • How to Maintain a Whole House SimplySoft® Grain Softener
Whole House SimplySoft® Grain Softener
Ratings & Reviews
Customer Q&A
FAQ
Aquasana FAQs
1. What is a water softener, and how does it work?
A water softener is a system that reduces calcium, magnesium, and other minerals in hard water, making it softer. It typically uses a process called ion exchange to replace hard minerals with sodium or potassium ions.
Softened water helps prevent scale buildup in pipes and appliances, extends the life of water heaters, improves soap and detergent effectiveness, and leaves skin and hair feeling smoother.
Signs of hard water include white scale buildup on faucets, spots on dishes, reduced soap lather, dry skin, and dull hair. A water report from your municipality, or a water hardness test can confirm if a water softener is needed. Generally, any water with a hardness level greater than 3 grains per gallon can benefit from a water softener.
Hard water is a count of mineral content. It occurs when dissolved minerals clump together to produce scale that can harm your internal pipes, plumbing, and home appliances. Hard water contains a higher-than-average amount of dissolved minerals (primarily calcium and magnesium), and a higher concentration of multivalent cations (Ca2+ and Mg2+).
Water conditioners use several alternate technologies, like magnetic, electronic, or catalytic methods, to change the way minerals in water behave, helping to prevent scale buildup in pipes. However, these methods do not reduce the water's hardness minerals. Since a water softener reduces the hardness minerals, you get added benefits including reduced spotting, improved soap and detergent effectiveness, and more.
Our SimplySoft® 40,000 Grain Water Softener is ideal for small to medium households of up to 5 people. Our SimplySoft® 60,000 Grain Softener is perfect for larger homes and those seeking enhanced performance.
Salt-based systems require regular replenishment of salt, with the total amount being dependent on the hardness of your water. The resin bed may also need cleaning with a resin cleaner occasionally to ensure optimal operation. We sell a Water Softener Cleaner to help with this. Occasionally, internal components in the valve assembly may need to be cleaned or have seals replaced. This should be no more frequent than annually and can be much longer between intervals depending on the quality of the incoming water supply.
Our system does not include salt at the time of purchase. Water softener salt can be purchased by the bag at your nearest home improvement store and some grocery and convenience stores. Salt should be purchased prior to system installation.
Salt sold in home improvement, grocery, and convenience stores labeled for water softening should be used. Sodium Chloride is the most common type of softener salt, but Potassium Chloride salt is also an option for those extremely sensitive to sodium intake. Both are often available as "solar salt," pellets, or in block form. Rock salt should not be used as it contains sediment and debris which may cause long term maintenance issues in your water softener.
Yes, this system uses a 12V AC power adapter and must be plugged into an electrical outlet.
Some systems add sodium to the water, which may not be ideal for people on low-sodium diets. However, the amount of sodium added a day [typically about 7.5 milligrams sodium per quart for every grain per gallon (gpg) of hardness, but dependent on the water hardness] is less than what you would consume in an average slice of white bread or an 8 oz glass of milk. Potassium Chloride can also be used as an alternative in water softener to avoid the additional sodium. Note that softened water may not be suitable for watering plants.
Most water softeners are designed specifically to reduce hardness minerals. To remove other contaminants like chlorine, iron, or bacteria, additional filtration systems may be needed, and are often used in combination with a water softener.
With proper maintenance, a typical water softener can last 10-20 years. Regular cleaning, maintenance of wear components, and checking the system's efficiency can help extend its lifespan. We sell a Water Softener Cleaner to help with your system maintenance.
While some systems can be installed by a knowledgeable DIYer, professional installation is often recommended to ensure proper setup and to avoid issues with warranties or water pressure.
Salt-based softeners discharge brine solution with chlorides, which can contribute to environmental salinity issues. To mitigate this, some areas regulate or restrict their use. Choosing an efficient water softener like one of Aquasana's SimplySoft® systems helps reduce the impact and meet some municipal regulations.
Signs of a properly functioning water softener include reduced scale buildup, improved soap lather, and softer skin and hair. If these benefits are not apparent, the system may need maintenance or servicing.
Yes, the SimplySoft® 40,000 and 60,000 Grain Softeners are compatible with the Rhino®, Rhino® Max Flow, Rhino® Chloramines, Rhino® Chloramines Max Flow, Rhino® Well Water, and OptimH2O® whole house systems. If you're interested in learning more about a whole house water filter and water softener, call our Water Experts at 866-662-6885.
Start with checking your water quality report and/or conducting a water test. A common measurement of water hardness is grains per gallon (gpg). If your hard water test displays the results in parts per million (ppm) or milligrams per liter (mg/L), you can take the total hardness level and divide it by 17.1 to determine the hardness in grains per gallon.
Anything over 3 grains is considered to be hard water.
Approximately 85% of the United States has hard water. The following hard water map illustrates the areas of hardness across the country. Map of US Water Hardness Areas

The amount of salt added to your water a day from a SimplySoft® softener is roughly equivalent to the amount of salt in one piece of bread. The SimplySoft® Water Softeners include a fast rinse cycle, where water is rinsed through the resin to flush any remaining salt brine out of the system. If you are sensitive to sodium, there are other types of salt available to add to the brine tank (potassium chloride salt).

If you are still concerned about the salt in your home's water with a softener, adding a Reverse Osmosis system, like the Aquasana SmartFlow® Reverse Osmosis, will filter any remaining salt out of your drinking water.