The 7 Best Reverse Osmosis Systems for Well Water

By: Jake Gallagher | September 27, 2023

In a market saturated with similar products and competing claims, it’s close to impossible to know which reverse osmosis (RO) system is actually worth the money and will give you the clean water you want and deserve.

To help you make an informed and satisfying choice, I’ve dived into the depths of the market to uncover the crème de la crème of RO systems tailored specifically for well water. I’ve reviewed all the top models, which included a detailed analysis of user manuals, discussions with existing customers, and personally testing these products to verify their claims.

Here are the seven best reverse osmosis systems of well water:

1. Springwell Reverse Osmosis Water Filter System: 9.4/10 

  • Best reverse osmosis system for homes of all sizes
  • Relatively maintenance free, durable, and equipped with a lifetime warranty

The Springwell four-stage reverse osmosis system is the most effective and reliable product of all those I reviewed. It’s world-class filtration and high flow rate makes it an ideal option for homes of all sizes, even larger ones. 


If premium, clean drinking water is what you want, the Springwell four-stage reverse osmosis system is the product you want. It combines a sediment and carbon block pre-filter before running the water through a reverse osmosis membrane to remove 99 percent of all contaminants, including sediment, chlorine, heavy metals, bacteria, viruses, cysts, and more. 

My next favorite thing about this Springwell reverse osmosis system is that it will have no impact on your home’s water pressure. It can filter up to 75 gallons per day, which is more than enough even for larger homes. It also has a 3.2 gallon storage tank, which gives you a nice little reserve of purified water in the event you ever need it.

Manufactured in the USA using NSF/ANSI-certified components, the Springwell Reverse Osmosis system is built to last and requires little to no maintenance on your part. Plus, it comes with a lifetime warranty. I like that this company is willing to stand by their product and is something that helps it stand out from the competition.


The Springwell four-stage reverse osmosis system has many advantages, but it does few drawbacks. 

It requires adequate space under the sink, which may be an issue for kitchens with limited space. However, in most cases, finding somewhere else to store stuff that usually goes under the sink is an easy tradeoff for contaminant-free and delicious drinking water.

In addition, some of you may find the frequency and cost of filter replacements to be a potential disadvantage. But this is just a fact of life for RO systems. You can buy the filters in bulk to save money, and once you get the hang of changing them it’s a pretty easy project.  

Installation can also be a bit tricky for those who don’t have a lot of plumbing experience. But with some patience and a few YouTube videos, you should be able to figure it out. If you’re still unsure, hiring a plumber to come in and do it shouldn’t be too hard and shouldn’t cost more than a few hundred dollars.


All in all, the SpringWell Reverse Osmosis Water filter system is the best reverse osmosis system for well water I found on the market. If you want the most effective reverse osmosis system money can buy that is also durable and maintenance free, check out the Springwell Reverse Osmosis system today.

2. US Water Systems Defender Whole House RO System: 8.7/10 

  • Best whole-house RO system for well water 
  • Jam-packed with extra features such as a customizable pre-treatment, UV light sanitizer, and a built-in Permeate flush
  • Considerably more expensive than other options thanks to all these other features

The US Water Systems Defender is an excellent whole house reverse osmosis water filter that does a whole lot more than its competitors. But while these extra features are cool, they jack up the price and aren’t totally necessary for most users. Still, you cannot go wrong with this RO system from US Water Systems.


The US Water Systems Defender is a one-of-a-kind product.. Most reverse osmosis systems only filter water coming from a kitchen sink faucet. This one delivers clean drinking water to every faucet and water tap in your home.

Using a four-stage process that includes pre-filtration, reverse osmosis, and remineralization and pH neutralization. This last step is unique to this system and is a great idea for anyone who has a slightly acidic water supply, something that can damage pipes and make water taste bad. 

As if this weren’t enough, US Water Systems adds in a UV filtration process at the end of the cycle to make sure all contaminants are 100 percent zapped. 

This is also perhaps the most efficient reverse osmosis water filter on the market. It runs at about 80 percent, which is much better than the 50-60 percent seen with other options.


While this system knocks it out of the park in a lot of ways, it’s not perfect. 

Probably the biggest downside of the US Water Systems Defender is that it’s anywhere from two to three times more expensive than the competition. This is partly due to its size: most RO systems are point-of-use, meaning they are set up on one faucet. This is a whole house system. Plus, it has a large storage tank, which increases the cost and also the space you need to be able to install it. 

Because of all of this, the Defender is best for commercial or industrial uses, or even multi-unit homes. It’s not super practical for home use. But if you’re willing to shell out the money, then this is a great product.


If you want a top-of-the-line reverse osmosis system that is loaded with features and aren’t really worried about the extra storage space and heftier price tag, then the US Water Systems Defender is the one for you.

3. APEC RO-Twist: 7.8/10 

  • Best budget RO system for well water
  • Effective filtration but not quite as much as the other options on the market

The APEC Water Systems RO-Twist four-stage is a more than adequate reverse osmosis filter system that will get the job done without breaking the bank. It’s not quite as effective in filtering out some of the less common and smaller contaminants as compared to other products I’ve reviewed, but it will get the job done at a fraction of the price.


The APEC Water Systems RO-Twist is an excellent choice for homeowners seeking affordable and efficient water filtration specifically designed for well water.  

Despite its competitive price point, this system doesn’t compromise on performance or quality. It provides a cost-effective solution for homeowners who want to enjoy the benefits of reverse osmosis filtration without breaking the bank.

Using a sediment filter, a carbon block filter, a sem-ipermeable membrane for the reverse osmosis, this APEC system does away with heavy metals, bacteria, viruses, and more. 

The unique twist mechanism also makes this an attractive option. It makes changing the filters quick and easy for anyone to do.


This is designed to be an easy-to-use and maintain system, and it’s perfect for smaller homes. But a slightly lower flow rate can lead to drops in water pressure, especially if you already start out with a lower flow rate. 

Also, because the APEC Water Systems RO-Twist is a smaller unit, the filter tends to run out a lot more quickly than with other options. But because of the easy-to-use twist-lock design, this is a fairly easy and inexpensive thing to do. But some people find the extra maintenance a little annoying.


If you want a more-than-capable reverse osmosis system for a fraction of the cost of some of other systems, the APEC Water Systems RO-Twist is a great choice. It has some limitations, but those in search of a budget option will be more than happy. Get the APEC Water Systems RO-Twist here.

4. Aquasana OptimH2O Reverse Osmosis + Claryum RO system

The Aquasana OptimH2O Reverse Osmosis + Claryum system utilizes a combination of Claryum and reverse osmosis technologies to effectively reduce a wide range of contaminants commonly found in well water, including heavy metals, chlorine, pesticides, herbicides, and more. 

Claryum technology combines various filtration methods to target specific contaminants while retaining beneficial minerals. The result is improved taste and odor, and a refreshing and enjoyable drinking experience.

While the OptimH2O efficiently filters water, a portion is discharged as waste. However, the system does have an eco-friendly design to minimize water waste. 

Unfortunately, this reverse osmosis system may be overpriced. It’s more expensive than the APEC Water Systems RO twist, but with more downsides.

5. Home Master Artesian Full Contact RO system

The Home Master Artesian full-contact (with permeate pump loaded) under-sink reverse osmosis water filter system utilizes a multi-stage filtration process, including sediment, iron, catalytic carbon, and reverse osmosis technologies. 

This combination effectively targets and removes various impurities commonly found in well water, such as sediment, chlorine, heavy metals, dissolved solids, and other contaminants.

The Home Master Artesian system incorporates a full-contact remineralization stage. It adds important minerals back into the purified water, enhancing its taste and providing a more balanced pH, resulting in water that is both clean and mineral-rich.

While the Home Master Artesian offers outstanding filtration performance, it’s loaded with additional features, including the full-contact remineralization stage and a permeate pump. These added components may require more space under the sink for installation, making it less suitable for smaller kitchens or areas where space is limited.

The system’s advanced features and additional components may result in a slightly more complex installation process compared to simpler RO systems. It may require technical knowledge and expertise to ensure proper setup and operation. 

There have also been complaints by customers about vague instructional media during installation, and most attempts to contact the customer service department have borne no fruit. The manufacturer has also acknowledged that the system’s main canister has a known defect that might lead to leaks.

If you need a reliable reverse osmosis system that will provide clean drinking water without having to worry about leaks and build quality, the Springwell reverse osmosis water filtration system is the best choice.

6. Express Water Elite RO system

One of the Express Water Elite RO system’s notable advantages is its quick-change filter design, which allows for easy and convenient filter replacements. The filters are designed for simple removal and installation, making maintenance a breeze. 

Additionally, the Elite RO system operates efficiently with a 1:1 ratio of purified water to wastewater, conserving water and minimizing waste.

While the Elite RO system offers many benefits, it’s important to consider a potential drawback: the system’s compatibility with specific water pressure requirements. Users should ensure that their water pressure meets the recommended levels for optimal performance. 

7. WECO Ultra Whole-House RO system

The WECO Ultra whole-house reverse osmosis system is recommended only for the most contaminated well water. This unit includes an RO system, an atmospheric water storage tank protected by a recirculating post treatment system, a distribution pump, and a granular activated charcoal polishing filter unit. 

It is designed to be installed by a qualified plumber. Your French or curtain drain system must be sized to accommodate full system discharge water as well as any pre-treatment softener/backwash filter waste water that may be required.

This system has a 2,000-gallon per day capacity, a coconut-shell charcoal-based backwash filter unit that reduces chemicals that may harm the delicate RO membranes, a 300-gallon atmospheric tank sized for the daily needs of four people, a float control unit, and an RO controller that provides automated equipment control with no user input requirements.

However, at $12,325, this is one of the most expensive water filtration systems on the market and is well beyond the reach of most individuals. Additionally, I did not find enough user reviews that attest to this unit’s operational effectiveness (probably because few people would spend that much on a water filter — I’d move first).

Bottom Line

After exploring various reverse osmosis systems, the Springwell four-stage reverse osmosis system proves the best point-of-use (POU) system for well water, offering exceptional filtration capabilities and a convenient installation under the sink. Its advanced four-stage filtration ensures the removal of a wide range of contaminants, making it an excellent choice for homeowners who prioritize clean and safe drinking water.

If you need a reverse osmosis system that will filter out 99% of all contaminants from your well water, check out the Springwell reverse osmosis system today.

Reverse Osmosis Systems for Well Water: Review Methodology

This section outlines the process I went through while reviewing these seven reverse osmosis filters.

Step 1: A list of every reverse osmosis system for well water

To start my research, I made a big list of all the brands and the well water reverse osmosis filtration systems they offered.

I scoured Amazon, Wal-Mart, and Target, but I still needed to find out more. So I also contacted local contractors and plumbers to learn which filters they recommend to well owners in need of clean drinking water. 

By the end of the day, I had a meaty list of reverse osmosis filtration systems ideal for contaminated well water.

Step 2: Product analysis

For the next step, I made a list of the major features to look for in a modern reverse osmosis system: 

  • Water filtration stages
  • Flow rate
  • Filter lifespan and replacement
  • Storage tank capacity
  • Installation and maintenance
  • Certification and testing
  • After-sales service and support
  • Environmental friendliness
  • Cost 

I eliminated any unit that didn’t meet at least 75% of the requirements on my checklist.

Step 3: Reviews

Next, I analyzed customer reviews for the major reverse osmosis system manufacturers in the US. This necessitated hours of research on the manufacturers’ websites, as well as Amazon, Lowes, Wal-Mart, and Consumer Affairs, among others. Finally, I compiled a list of trustworthy brands that showed some promise.

Step 4: Interviews with real customers

With a list of reputable RO systems at hand, it was time to contact customers who had purchased one and ask them about their experience. 

So, with the aid of a few friends, we arranged a survey at several hardware and retail stores in my town and distributed free drinks and cookies to everyone who wanted to talk about their experiences with the RO systems on my list. 

It was an expensive venture, but I was adamant that it would pay off. By the end of the day, I had acquired enough information to remove a few more brands from my list.

Step 5: Interview with manufacturers 

The fourth stage was to call the customer service representatives of the remaining RO system manufacturers and push them to respond to some of the unfavorable consumer feedback they had received. This enabled me to see how each company handled negative criticism and how polite and useful their customer service employees were. 

Step 6: Test drives

For this final step, I decided that only a controlled test run of all the units on my list would enable me to speak authoritatively on this issue. Therefore, I called a few water treatment dealers in my area and asked them if they’d be willing to send over some units for testing. 

After some back-and-forth, one dealership acquiesced to my request on the condition that their in-house technicians be present during the test runs. So, without hesitation, I leased a warehouse from a close friend, filled three large water bowsers, and embarked on a two-week test run of all reverse osmosis systems on my list. 

Step 7: Ratings

To rank the filters, I created a spreadsheet with all the details I had accumulated in the preceding weeks. I scored each filter on the following factors:

  • Filtration technology 
  • Certifications
  • Flow rate
  • Filter build and quality 
  • Maintenance 
  • Filter life 
  • Cost
  • Warranty
  • Customer reviews

Final Thoughts

When it comes to selecting a reverse osmosis system for well water, one exceptional choice rises to the top.

The Springwell 4-stage reverse osmosis system stands as the undisputed champion of point-of-use (POU) systems. With its advanced four-stage filtration process and convenient under-sink installation, it removes a wide range of contaminants, providing you and your loved ones with clean and safe drinking water.  

Remember, clean water is an essential foundation for a healthy life. Don’t wait any longer — invest in the Springwell four-stage reverse osmosis system and provide your family with the pure, great-tasting water they deserve.