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Description
All our systems come with a 120 Day Satisfaction Guarantee. If you're not satisfied with your system in 120 Days send it back for a full refund. Click here to learn more.
Improve your home's water quality with the NU Aqua Whole House Salt Free Water Softener With Total Filtration. This powerful 4-stage system not only removes heavy metals, contaminants, and unpleasant odors but also acts as a salt-free water softener—helping to reduce scale buildup and extend the life of your plumbing and appliances. From the kitchen to the shower, enjoy cleaner, softer water throughout your entire home or business.
Performance You Can Count On. Protection You Can Trust.
Whether you're enhancing your home’s water system or equipping a commercial property, this professional-grade solution is built to meet the demands of any space—homes, apartments, restaurants, offices, and beyond. Each high-capacity 20” filter cartridge delivers powerful, long-lasting filtration with high flow rates, providing thousands of gallons of clean water with minimal upkeep.
Four Powerful Stages of Filtration:
Stage 1 – Sediment Filter
This initial stage targets larger particles such as dirt, rust, sand, and insect debris. By capturing these contaminants early, it helps prevent clogs and damage to your plumbing and appliances while improving the efficiency and lifespan of the filters that follow.
Stage 2 – Heavy Metal KDF Granular Activated Carbon (GAC) Filter
This is where the real purification begins. Using premium carbon media, this stage adsorbs a broad spectrum of heavy metals and chemical contaminants—including chlorine, pesticides, VOCs, industrial solvents, lead, mercury, benzene, and more. It acts as a powerful barrier against many of the most common pollutants found in household water.
Stage 3 – SoftGuard Water Softener
This filter uses a salt-free conditioning process to reduce scale buildup caused by calcium and magnesium—without adding sodium to your water. Unlike traditional softeners, it doesn't require salt, electricity, or backflushing, making it low-maintenance and ideal for extending the life of plumbing, appliances, and fixtures.
Stage 4 – Carbon Block Filter
The finishing touch. This 5-micron carbon block filter eliminates remaining tastes, odors, and discoloration caused by chlorine, chloramine, sulfur (responsible for the rotten egg smell), and trihalomethanes—harmful byproducts of water disinfection. The result is clear, fresh-smelling water that looks and feels clean.
Engineered for Strength and Durability
Built with industrial-grade materials, the NU Aqua Whole House Water Softener System is equipped with rugged filter housings, sturdy mounting brackets, and dependable, leak-resistant fittings. The large 20” filter cartridges support high flow rates—up to 15 gallons per minute (GPM)—making it a powerful solution for both spacious homes and commercial spaces.
When it's time for a filter replacement, the process is simple and straightforward. Just remove the housing, swap in a new cartridge, and keep your system running smoothly—no complex tools or procedures required.
Installation Manual here
Why Choose NU Aqua’s Whole House Water Softener System?
- Removes scale build-up without removing healthy minerals
- Provides Salt-Free Water
- Filters out heavy metals like lead and mercury
- Reduces harmful chemicals, VOCs, pesticides, and industrial contaminants
- Improves water taste, smell, and clarity
- Protects your plumbing and appliances from sediment buildup
- Perfect for homes, businesses, and multi-unit properties
- Easy maintenance with high-capacity 20” filters
- Flow rate: 15 GPM for uninterrupted water supply
Product Includes
Benefits
Warranty & Returns
Specs & Requirements
Installation
Estimate shipping
Payment & Security
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Salt-Free Softeners Vs. Salt Based Softeners
NU Aqua System's SoftGuard Water Softener turns calcium and magnesium particles into crystals that get rid of limescale buildup in pipes and faucets.
No Waste Water or Electricity
Salt-based softeners waste hundreds of gallons of water and use tons of power. NU Aqua System's Salt-Free softeners produce no waste water and use 0 electricity.
While salt-based softeners only use 1-3 stages of filtration, NU Aqua salt-free softeners use 4 stages of filtration for clean, healthy, mineral-rich water without bad taste.
Filter with a system you and your home can trust!
NU Aqua 4 Stage Whole House Salt Free Water Softener With Total Filtration
★★★★★ 30+ Reviews
✔️ Protects plumbing from corrosion & scale buildup
✔️ Soft, contaminant-free water out of every tap
✔️ Healthier skin & hair
✔️ Softer laundry
✔️ Extends the lifespan of appliances
✔️ Backed by 120 Day Guarantee
✔️ Free Shipping
4 Stage Salt Free Water Softener
3 Stage Heavy Metal Whole House
3 Stage Multipurpose
Protect your health and home
Heavy Metals
Chlorine
VOC's
Dirt & Debris
NU Aqua Gives Your Entire Home the Soft Water It Deserves
From showers to laundry to your favorite recipes, NU Aqua Salt Free Water Softener Whole House systems softens hard water while geting rid of heavy metal, chemical, and bacterial contaminants throughout your entire house.
Purify your water for delicious, healthy, odor-free drinking water with vital minerals on demand out of every faucet.
From your favorite dishes to coffee and drinks, NU Aqua Systems softens and gets rid of contaminants in your water, bringing out delicious flavors.
Soft water helps clear away and prevent scaling, which keeps appliances like refrigerators, coffee makers and more running safely for years.
The soft water that comes from this system lets you enjoy odorless, contaminant-free showers and baths that leave your skin and hair healthier than ever.
This system produces the soft, filtered water you need for cleaner clothes, richer colors, and less damage to your clothes.
Soft, heavy metal and chemical-free water helps your home's plumbing stay safe from scaling, clogs and damage caused by contaminated water.
People love the results!
Enjoy the Benefits of Soft, Filtered Water From Every Tap
- Mineral-rich drinking water with safe, vital calcium and magnesium minerals.
- Salt-free softener with no bulky tanks or power-draining equipment.
- Easy maintenance with no plumbers or special tools needed.
- Heavy duty, high volume filters with 20" filters that handle large volumes of water and contaminants for years.
- 15 GPM Flow Rate that gives you 900 gallons an hour, and up to 20,000 gallons every day!
each system is backed by our 120 Day Risk-free trial
Because you deserve proper hydration and the body you always wanted.
So we'll give you 4 whole months to fall in love with your water or your money back.
And that's on top of all the other benefits you get with NU Aqua systems, like...
Thinking about a point-of-use filter?
Reverse Osmosis
Shower Filter
Inline Filter
Countertop
Frequently Asked Questions (F.A.Q.)
Salt-based softeners use resin beads that attract calcium and magnesium that cause hard water. Those beads sit in a big tub and when the resin beads are filled with particles they release salt, which softens water. However, this process creates tons of waste water and require big bulky reservoirs to operate.
Salt-free softeners like the NU Aqua 4 Stage Softener use a special filter to crystalize and neutralize calcium and magnesium. Those minerals then go through your pipes to descale and soften water without any salt exchange or bulky setup. It creates no waste water, and instead of removing calcium and magnesium, they're rendered harmless and readded to your water to boost its ability to help your body.
A whole home heavy metal water filter cleans a whole host of contaminants from your water, including:
- Dirt, sand, and rust
- Chlorine (the stuff that makes water smell like a pool)
- Chemicals from farms and factories
- Germs like bacteria and viruses (with the right filter)
- Heavy metals like lead and mercury
- Other harmful stuff like nitrates and arsenic
- Bad taste and smells
And the best part: that clean water comes out of every faucet, unlike point-of-use filters that only work for a single faucet.
Whole home filters can take out the majority of contaminants from your water.
And their ability to get rid of contaminants depends on factors like:
- The quality of filters used in the system
- How durable the filter housings and assembly are
- The contaminants in your water
- How often you change your filters
That's why top quality systems- like the ones you find at NU Aqua Systems- can take out 90–99% of the bad stuff in your water because
- We only use high quality filters in each system that can filter contaminants in thousands of gallons of water
- Our systems are made with top quality materials that hold up to years of use
- We also send alerts and reminders for you to maintain your system for maximum filtration and clean water output.
The difference between the two comes down to how many faucets you can move clean water through:
- A whole home filter cleans all the water that comes into your house. That way every sink, shower, and appliance gets clean water.
- A point-of-use filter only cleans water at one spot, like your kitchen sink.
Whole home filters cost more but give your whole house clean water. Point-of-use filters cost less but only clean one place.
Yes, most of the time. Whole home filters are big and connect to your main water pipe. A plumber usually has to:
- Cut into the pipes
- Make sure it fits right
- Test for leaks
- Follow the city’s rules
Trying to do it yourself could cause leaks or water damage, so it’s best to hire a pro.
You need to change filters to keep water clean. How often depends on your water and your system:
- Sediment filters: about every 6 months
- Carbon filters: every 6–12 months
- Special filters: about once a year
Costs can be:
- Sediment filters: about $30
- Carbon filters: $40–50
- Big tank filters: $50–300 or more
You have to take care of your filter so it lasts. This may include:
- Changing the filters (every 6–12 months, depending on the type)
- Cleaning parts of the system
- Checking for leaks
- Making sure water pressure is good
Some people hire a water expert once a year to check everything.
It depends on the system and how well you take care of it.
- Cheaper systems may last 5–10 years.
- Good systems can last 10–20 years or more.
If you keep it clean and change filters on time, it will last longer.
Yes, a little. All filters slow water down some.
- You may notice the water pressure is a little lower.
- If you don’t change the filters on time, it can get worse.
- If the filter is too small for your house, the water flow may drop a lot.
A properly sized system should give you plenty of water for normal use.
Yes. A whole home filter needs:
- To be put on the main water pipe where water enters your house
- Pipes that fit the filter connections
- Shut-off valves so you can turn water off for cleaning
- Enough water pressure (usually between 20–80 PSI)
- Sometimes a permit or inspection from your city
Some systems may also need power or extra parts depending on your home.
Customer Reviews
I had this unit installed a couple years ago, and the water quality has been excellent!! I would recommend this whole House system to anyone and I have many time!!!
This product is the best thing I’ve ever bought for my house. No chlorine no fluoride nothing. I test the water regularly and it comes back zeros every time. Highly recommend.
Family of three and two dogs have been using this whole house filtration system for 3.5 months. Immediately after installation, the water was softer and odor disappeared. The water tastes better. I also think I see some modest improvements in our family’s skin health: less back breakouts for dad, smoother skin for the little one, and less dryness for mom. We had a plumber install the system. We have not changed filters yet. So far so good.
Built like a tank with nice looking gauges.
Important to mention, in several posts on the questions section, the company Nu Aqua has stated the dimensions of the unit to be 24.25" x 7.75" x 27.75" (LWH) THIS IS INCORRECT. It almost made my install not work.
THE UNIT IS 30.5" (H) from the rubber feet to the top edge of the mounting plate of the frame. Might not affect too many people, but it made my limited space install very close to not working.
So far it's been a great addition to my water treatment. Lower dissolved solids by 57% right away after install. Expect it to improve out garden health and very happy to have clean water coming into the showers. We previously used shower filters. This should also extend the life of filters for my 7 stage RO filter from Nu Aqua.
4.5 stars initial response.
