7 Best Reverse Osmosis Systems For Well Water (2021)

In today’s guide, we will review 9 best Reverse Osmosis systems that are effective for well water. 

Well water contains a lot of contaminants like iron, coliform bacteria, dissolved solids, sulfate and other pollutants. Especially, most of the well waters are hard because of excessive amounts of magnesium and calcium. 

To remove all these contaminants, a Reverse Osmosis membrane is the perfect solution.

In the RO process, water molecules pass from a semipermeable membrane that can filter all the pollutants nearly equal to 0.00000004 inches.

Reverse osmosis not only removes pollutants from water but also makes it soft and ultra-pure. 

Most of the Reverse Osmosis system also contains pre/post filters, and remineralization filters that add essential minerals back into the water. To help our readers, we have spent a lot of time researching and piled up the list of some best RO systems for well water. 

So let’s have a look at some advanced RO systems!

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Best Reverse Osmosis Systems For Well Water

Express Water RO5DX Reverse Osmosis

best ro system for well water

Express water filter systems are affordable than other systems that offer the same features. Because of its insane 5 stage filtration, it’s a best selling Reverse Osmosis system on Amazon. 

RO5DX is a latest model that can produce up to 50 gallons of pure water in a day, so it’s also perfect for large families. Because of its tank design, you can fill your cup with pure water anytime you want.

The built-in leak detection ensures that water is not wasted. It automatically detects leaks and stops the water flow.

RO5DX Is Perfect Choice For Well Water

As well, water contains a lot of impurities that are not adequately filtered with just one membrane. That’s why the Express Water RO system offers 5 stages of advanced filtration to take contaminants to 0 levels.

In this system, water is passed through the Sediment filter, Carbon block, Granular Carbon filter, and Post Activated Carbon filter. After 5 stages, water becomes pure and contaminants free, which is essential for your health. 

Now, you might think this RO system is perfect for hard well water? Yes, it can filter hard impurities from water, but these impurities can reduce the lifespan of activated carbon filters.

Otherwise, you need to change the pre-filter twice a year and the RO membrane once a year. 

The one missing thing in Express RO5DX is the remineralization stage, which is responsible for adding essential minerals back to the water. But you can expect these drawbacks in something which is half the price of its competitors.

  • Affordable
  • 8 gallons/minute
  • Easy to install
  • Filters are long-lasting
  • Not made for weak water pressure
  • It can’t improve the water taste

APEC Top Tier Supreme Certified Water Filter

Best ro systems for well water

Most of you are looking for some multifunctional systems that filter the water and Remineralize it and improve its taste. So, the APEC Top tier is one of the best water filters for well water that enhances the PH level of water and removes acidity. 

Its US-made Quality and filter ensure high performance and maximum contaminants removing rates. Thanks to its 90 gallons per day output, you can use this filter for different ceremonies, functions, parties, etc.

Remove 99% Of Contaminants From Well Water.

With advanced 7-stage filtration, APEC water filter systems can remove 99% of impurities like; Chlorine, Sediments, Arsenic, Herbicides, Lead, Nirated, Fluoride, Insecticides, Industrial chemicals and more.

The system works in 6-stages; the first 5-stages are used to remove impurities like APEC water filters. The extra 6 stages are used for Remineralization. They add essential minerals like calcium back to the water and improve its taste.

The most premium thing in APED Top Tier water filter is the US-built membrane that makes it more worthy. Each filter and membrane is independently tested for high performance, giving maximum success rate each time. 

I recommend this water filter system for well water because it can remove 2x more impurities than other market competitors.

  • Amazing performance
  • Built-in Quality is insane
  • Featured Remineralization
  • Expensive
  • Does not remove chloramines

Best Whole House Water Filters For Well Water With Iron

iSpring RCC7AK-UV, NSF Certified, 75GPD 7-Stage System

reverse osmosis systems for well water

iSpring is one of the well-known water filter brands that have a massive family of filters. But RCC7AK-UV is the most powerful system offering 7-Stage filtration. 

If your well water contains viruses and bacteria, then this water filter is ideal for you because the extra Ultraviolet sterilizer kills all types of viruses, bacteria, and other microorganisms. 

With 40-70 Psi of stable water pressure, you can quickly fill a cup with fresh water. RCC7Ak-UV can filter 75 gallons per day which is a massive capacity. 

In terms of Quality, iSpring RCC7AK-UV has a unique presence in the market. That’s why it won a WQA Gold Seal Award. All the filters and components are separately tested for high performance. Plus, it’s certified against NSF 58/ANSI for TDS reduction.

Premium quality components ensure low maintenance, so you don’t need to waste time and money replacing parts.


In terms of performance, iSpring, a water filter, can compete with top market-leading filters, and this is because of its 7 Stage filtration systems. Here is how its Multi-stage filtration system works.

Stage 1: A 5-micron sediment filter removes all dust, dirt, sand, and other large impurities that the naked eye can see. 

Stage 2,3: Here, an activated carbon filter removes chlorine and improves the taste of well water. 

Stage 4: This is an actual filtration stage where the Reverse Osmosis process takes place and removes 95% of total dissolved solids. 

Stage 5: It removes bad odor and improves taste.

Stage 6: iSpring RCC7AK also introduced Remineralization, which takes place on Stage 6. It adds healthy minerals such as calcium, sodium, and magnesium back into the water.

Stage 7: And on the last stage UV Sterilizing process kills all types of bacteria and viruses.

  • Easy DIY installation
  • Amazing performance
  • It kills bacteria and viruses
  • Improve the taste of water
  • The PH balancing factor could be improved
  • You pour one glass of water, and you waste five down the drain.

Express Water Ultraviolet Reverse Osmosis Water Filtration System (ROUV10DCG)

 best reverse osmosis water filter systems

Here come another Express RO Water filter systems that offer advanced UV Reverse Osmosis and sterilization to get more clean and pure water. In the series of Express RO systems, it’s a more powerful but affordable system.

It can filter 100 gallons of water per day and produce filtered water at a rate of 0.8 gallons per minute. To save your water from leakage, it offers a Leak stop valve that shuts off water flow when leakage is detected.

In terms of design, this Express water filter has a compact design, so you can easily install it under the sink or any other place. It’s a perfect option for tap water, well water, residential use, industrial, RV, and office use.

Express Water Filters Are Always Best For Well Water

My grandfather, living in a village area, uses an Express water filter and is 100% satisfied with this brand. Its RO membrane can filter all the impurities present in well water like; Fungi, ALgae, Microorganism, Viruses, Herbicides, Sand, Rust, Dust, Chlorine, Fluoride, and also reduce TDS.

This system uses a Sediment filter, Granular Carbon filters, RO membrane, UV sterilizer, and a Post activated carbon filter to remove 99.99% of impurities.

Like a reset of Express filters, it also demands changing the carbon filter twice a year. At the same time, the RO membrane and Post carbon membrane must be changed once a year.

  • Leak Detection
  • Remove 99.99% of contaminants
  • 100 GPD water capacity
  • Also kills viruses
  • No remineralization

Zero Water Filter VS Reverse Osmosis

Whirlpool WHER25 Reverse Osmosis (RO)

Whirlpool WHER25 Reverse Osmosis (RO)

You might be aware of the Whirlpool brand that offers various types of home appliances. In the department of water filtration, Whirlpool WHER25 scores high and falls in the high performing filters category. 

The good thing that I have seen in these water filters is their convenient design, easily installing this system under the sink. Compared to the rest of the RO systems in the market, Whirlpool WHER25 is an affordable system but offers excellent performance.

Because of its DIY design, you can easily install it without the need for a plumber. In the package, you will get many items like RO module, Faucet, Tank connector, Ro membrane, 2x Filters etc.

Fact About Its Filtration

Whirlpool WHER25 is NSF certified, and the third party is tested for high performance. Its premium quality WHEERM membrane last for approximately two years, which is insane. The three-stage filtration reduces and removes all types of pollutants from well water.

In stage 1, water is passed from a pre-filter that reduces sand, dirt, and other impurities and removes 95.2% chlorine and improves taste. 

Then, in the second stage, the water passed from a semipermeable RO membrane that removed TDS and organic matter. The premium quality RO membrane has a higher reduction rate, so it gives you high-quality water. 

And lastly, the carbon filter is used to remove bad odor and improve the taste.  

Note: Whirlpool WHER25 water filter is best for well water because it has a high success rate in removing Organic matters present in well water.

  • Long-lasting filter
  • Affordable
  • Improve the taste of water
  • Efficient design
  • Water filtration capacity is a low 20 GPD.


Waterdrop RO Reverse Osmosis Water Filtration

which Reverse system is best for well water

With time technology changes, and now you can see tankless water filters in the market. If you search for advanced and unique systems, then have a look at the Water Drop RO system. 

Because of its Smart Panel, Tankless design, and Self-cleaning feature, it’s the most convenient RO system on our list. The Water Drop system can be fitted more easily and installed under the sink. 


The advanced technology in the Water Drop RO system produces 600 gallons of filtered water a day. And the water flow rate is also fast, and you can fill a 200 ml cup of pure water in just 8 seconds.  

Best Tankless Water Filter For Well Water

In the Water Drop filtration system, the way of filtering water is the same as traditional filters. Still, you get high performance and a fast flow rate this time because the RO membrane in this system is more extensive and can filter more micropollutants than standard RO filters. 

The extra PET pleated membrane removes large particles, which directly increase the lifespan of the RO membrane. This system comes with an activated carbon filter made from natural coconut shells that also filter micropollutants.

Under the hood, there is a booster pump that provides stable pressure for speeding up the RO process. 

  • 0.0001-micron RO membrane
  • Can produce 600 gallons of filtered water in a day
  • Fast flow rate
  • Self Maintenance
  • This tankless system is a little expensive than another RO system.

APEC Water Systems ROES-PH75

 Ro water filters systems for well water

This one is the last RO system on our list. It is assembled in the USA and tested under NSF standards to meet high performance.

This system can produce 75 gallons of water a day which is suitable for large families. APEC ROES-PH75 comes with calcium carbonate to effectively raise the PH in the water so that you can enjoy healthy water full of natural minerals.

The installation process is pretty easy; you don’t need to hire any plumber. You can watch step by step installation videos and instruction manuals to install the system successfully.

With 2 years of manufacturer warranty, you can easily trust this brand. You will get a 100% lead-free faucet, JG food grade tubing, leak-free fittings, and other essential fittings in the package.

Filtration Performance:

In this APEC system, water is passed from 6 stages that remove every pollutant from it. The system is guaranteed to remove 99% of contaminants like chlorine, TDS, heavy metals, arsenic, nitrates, lead etc. 

Unlike other RO systems, this APEC filter system offers double carbon blocks to get efficient results. It effectively improves the taste of water and removes odor from it.  

APEC ROES-PH75 also offers a Remineralization feature, adding essential minerals back to the water and improving the PH.

  • Remineralization feature
  • Produce 75 GPD of purified water
  • Only 3 gallons of waste per gallon of filtered water
  • A modular filter is difficult to replace

Guide To Buy Best Reverse Osmosis System For Well Water

is reverse osmosis is best for well water

There are tons of reverse osmosis systems available in the market, and it isn’t easy to choose the best one. 

Especially if you search RO systems for well water, you have to focus on a few essential things. 


RO systems remove all types of contaminants and minerals from water. And it also eliminates essential minerals like calcium, zinc, and fluorine etc. 

But if your Reverse Osmosis system has a Remineralization stage, it will add essential minerals back to the water. If you are health conscious, then make sure your Reverse Osmosis system must have Remineralization features. 

Filter Quality And lifespan

The only thing which is essential in a Reverse Osmosis system is the RO membrane and Carbon filter. These filters remove all types of impurities from water and make it pure. If the Quality of the filter is not good, it means your filter is useless. 

Make sure that filters are NSF certified and have good quality. A premium quality filter always has a long lifespan, so you don’t need to change it again and again.

Secondly, check that the size of the carbon block filter is large enough to block impurities. A large carbon filter is much more efficient and filters water for an extended period.

Water Output

Water output is another important factor that most of us ignore. It’s the amount of water that can be filtered in a day. It’s measured in gallons. If your RO system can filter 30 gallons per day, then it has enough water output. 

Water output also depends on water flow rate and Quality of water. If your water contains a lot of impurities, filtration takes time, and water output will automatically drop.


A well water RO system is the perfect option as it removes all hard impurities present in well water. It not only eliminates harmful contaminants from water but also improves the taste of water.  

We have done deep research before making the list of best RO systems, and you can choose any RO system from our list:)

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