Top 5 Best Reverse Osmosis Systems with Remineralization

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Although reverse osmosis is the most effective method of removing contaminants from water, it has one major flaw – removing essential minerals like calcium and magnesium from the water.

The best way to restore the minerals and improve the pH of the water is through remineralization.

If you find reverse osmosis water boring, you need to invest in the best reverse osmosis system with remineralization. The process makes the water healthy and great tasting.

And since getting one for your household might not be easy, we’ve prepared this post to guide you through.

We’ve discussed the top 5 RO systems with remineralization to help you make an informed buying decision. Keep reading

Best Reverse Osmosis System with Remineralization: Comparison Table

iSpring RCC7AK-UVFrizzlife PD800-TAM4Home Master TMAFC-ERP-LWaterdrop WD-G2MNRGeekpure RO5-AF
View on AmazonView on AmazonView on AmazonView on AmazonView on Amazon
Water filtration stages  7  7  7  5  6
Feed water pressure  45 – 75 psi  20 – 80 psi  40 – 90 psi  Minimum psi 14.5, maximum –  40 – 100 psi
Water flow rate  75 GPD  800 GPD  75 GPD  400 GPD  75 GPD
Pure-to-waste water ratio  1:3  2:1  1:1  1:1  1:2
UV Sterilization  Available  N/A  N/A  N/A  N/A
Product dimensions15 x 8 x 18 inches14.69 x 5.28 x 15.51 inches20 x 16 x 12 inches17.33 x 13.98 x 5.91 inches14.2 x 6 x 18.1 inches
Weight28 pounds31.83 pounds16.45 pounds23 pounds24 pounds
CertificationsNSF/ANSI 58 certified  N/A  NSF certified  FCC compliant  NSF certified( RO membrane)
Warranty1-year limited manufacturer warranty18 months manufacturer warranty5-year limited manufacturer warranty1-year limited manufacturer warranty1-year warranty

1. iSpring RCC7AK-UV 7-Stage RO System

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The RCC7AK-UV is a premium quality RO system that filters water in 7 stages. The model is a product of iSpring; a water filtration solutions brand with headquarters in Atlanta, Georgia.

The multi-layered system removes up to 99% of over 1,000 water contaminants, including heavy metals, microorganisms, chemicals, and more.

It produces 75 gallons of water per day and has a filtered-to-waste water ratio of 1:3

Eager to know why the RCC7AK-UV is one of the best RO systems with remineralization? This is why:

Impeccable filtration performance

The system features some of the longest-lasting filters in the industry that filter water progressively in 7 stages.

In the 1st, 2nd and 3rd stages, the unit uses 3 pre-filters, including the PP sediment filter, carbon KDF (GAC) filter, and the carbon block (CTO) filter to remove sediment, chlorine, and chloramines.

Next, the water moves to the system’s heart (RO membrane filter), which eliminates contaminants down to 0.0001 microns.

In the 5th stage, a fine GAC filter further polishes the water before it is delivered to the faucet.

And to restore the removed minerals and add taste to the water, an alkaline remineralization filter comes into play in the 6th stage.

This system features an additional filtration stage – the UV stage that eliminates viruses and bacteria that could be present in the water.

Reinforced transparent first-stage housing

With the transparent housing, you can always tell when the filter is due for replacement.

High-quality components

The RCC7AK-UV is one of the most reliable and low-maintenance systems thanks to its premium quality components.

Easy DIY Installation

The system comes with push-connect fittings and color-coordinated tubing that makes installation easy. You do not have to be a pro to set the unit up.

Certified to NSF/ANSI 58

All filters, tubing, tanks, and other water-contacting parts are NSF/ANSI 58 certified for TDS reduction.

Unique flow sensor switch

The switch turns the UV unit on and off automatically. This helps save power and lengthen the life of the UV lamp.


  • Has a UV filter
  • Outstanding filtration performance
  • Fast flow rate of 75 GPD
  • Well written instructions
  • 1-year limited manufacturer warranty


  • Wastes a lot of water

2. Frizzlife PD800-TAM4 Tankless RO System

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The PD800-TAM4 is a fast-flow reverse osmosis system from Frizzlife that effectively eliminates 99.99% of contaminants from water.

It features a tankless design that prevents potential secondary contamination usually brought by the pressure tank.

The following key features make the system worth going for:

7-Layer filtration with precision

The PD800-TAM4 filters water in 7 layers with 0.0001-micron filtration precision. It eliminates 1000+ contaminants, including lead, fluoride, arsenic, TDS, limescale, chloramine, VOCs, and more.

Alkaline Remineralization

An alkaline remineralization post-filter (FZ-4) restores natural minerals lost during filtration. It also balances the alkalinity of the reverse osmosis water and adjusts the pH to 7.5.

The filter also reduces any lingering tastes and odor from the water.

800 GPD fast water flow

If you have a large household or running a small eatery, this might be the system for you. It can produce up to 800 gallons of pure water daily!

With the fast water flow, you can fill up an 8 oz glass with water in 7 seconds.

Super low drain ratio

This system features a super low drain ratio of 2:1, thanks to the innovative water-saving technology. To produce 2 cups of pure water, only 1 gallon of water goes to waste.

With this feature, the unit saves water 8 times more than traditional models.

Filter life monitoring and real-time TDS reading

The system’s high-end display panel tells real-time TDS and the remaining filter life of each cartridge.

The built-in TDS meter monitors the quality of the filtered water 24/7.


  • High daily water production rate of 800 GPD
  • Low drain ratio of 2:1
  • No secondary pollution
  • Compact and space-saving
  • Filter life indicator


  • Expensive

3. Home Master TMAFC-ERP-L Artesian Full Contact RO System

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The TMAFC-ERP-L Artesian full contact is an RO system from Home Master that filters water in 7 stages to remove 99% of water contaminants.

The system comes in an innovative design that solves several problems associated with tankless and canister RO systems.

It can produce 75 gallons of water per day and has a low drain ratio of 1:1.

So, what makes the TMAFC-ERP-L Artesian exceptional?

Superior filtration performance

The system uses 7 stages of filtration and purification to eliminate up to 99% chlorine, chemicals, fluoride, lead, and other heavy metals,  TDS, microplastics, and pharmaceuticals from water.

And unlike most imported loose-style membranes, which only reduce 90 to 94% TDS reduction, this system uses high-quality American-made DOW membranes to remove p to 99% TDS from drinking water.

2X Artesian remineralization

The TMAFC-ERP-L patented full contact Artesian remineralization system adds calcium and magnesium twice during the filtration and purification process, in the tank, and onto the delivery faucet.

It helps reduce storage tank degradation and improves the taste of the water.

Built-in non-electric permeate pump

The pump increases water production while reducing wastewater.

Innovative modular design

Unlike conventional models that come in complicated designs, this unit comes in a modular design that helps reduce common problems like leaks, slow flow rate, and high water waste.

Easy filter changes

Filter changes on conventional RO systems can be a real pain. They usually require heavy tools to loosen stuck canisters sealed by accumulated hardness.

But this isn’t the case with this system from Home Master. Filter changes are a breeze without using tools.

Additional features that make this system worth checking out include NSF certification and high-quality components.


  • Built-in permeate pump that reduces TDS creep
  • Can be connected to a fridge
  • Easy to upgrade and service
  • Easy to install
  • Backed by a 5-year limited warranty


  • No UV sterilization
  • Loud pump

4. Waterdrop WD-G2MNR-W Tankless RO System

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Waterdrop is one of the top-leading water filter brands. Their products are made from high-quality materials and thus highly reliable.

The brand’s RO systems are known for their fast water production rate, and the WD-G2MNR is no exception.

So, what makes this system worth purchasing?

Efficient filtration performance

The WD-G2MNR filters water in 5 stages and effectively removes sediment, suspended dust, and other large particles.

It also reduces chlorine, heavy metals, fluoride, nitrates, PFAs, TDS, powdered carbon, and more.

The system also comes with a remineralization filter that adopts the original PCC active mineral technology to add essential minerals like calcium, magnesium, potassium, and sodium to the water.

Tankless design

The system’s tankless design saves up to 70% under sink space and is thus the best for individuals with tiny kitchen spaces.

The tankless design also prevents harmful contaminants breeding and secondary pollution.

Fast water flow

With the G2MNR, you will get a glass of water in 12 seconds due to a fast water flow rate of 400 GPD.

The unit has a low drain ratio of 1:1.It saves water by 300%.

Easy installation

The system is one of the easiest RO systems to install. Additionally, it comes with everything you need for the installation process. You will not require any tool to set it up.

Filter replacements is also easy. In fact, Waterdrop’s manufacturer claims that you can complete the replacement process in 3 seconds.


  • Produces 400 gallons of water daily
  • Fast filter replacement
  • Smart filter life indicator
  • Saves a lot of under-sink space
  • Can be connected to a fridge or icemaker


  • Not recommended for well water

5. Geekpure RO5-AF 6-Stage RO System

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Geekpure is a leading manufacturer with vast experience in water filtration and purification since 1999.

The brand carries high-quality water filtration systems, and the RO5-AF is one of them. The unit filters water in 6 stages and has a daily water production rate of 75 gallons.

Features of this unit that stand out include:

Superb filtration

The RO5-AF filters water in 6 stages and effectively removes up to 99% of harmful water contaminants, including heavy metals, mercury, chlorine, fluoride, and 1000+ more.

An alkaline remineralization system improves the taste of the water by adding essential minerals like calcium into the water.

The filter also helps balance the pH of the water.

With the great-tasting water from this model, be ready to experience better-tasting foods, crystal-clear ice cubes, and tasty tea and coffee.

Premium quality components

High-quality components make the RO5-AF highly reliable and long-lasting. All parts come in handy to provide healthy and pure water.

Easy DIY installation

The system has color-coded tubing and quick-connect fittings for an easy DIY experience. It also comes with detailed instructions to help you complete the project with ease.

Additional features that make the RO5-AF one of the best RO systems with remineralization include 1-year manufacturer warranty and an NSF-certified RO membrane.


  • Produces 75 GPD
  • Provides great-tasting water
  • Clear installation instructions
  • Reasonably priced
  • BPA-free lead faucet
  • Backed by 1-year manufacturer warranty


  • A little bulky


Getting the best reverse osmosis system with remineralization for your home is the best thing you can do if you cannot stand reverse osmosis water.

The system adds essential minerals, like calcium and magnesium lost during filtration, to the water, making it healthy and great tasting.

The list contains RO systems with remineralization to suit your needs. From budget-friendly to high-end systems, you will surely find one from here. All the best!

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Dr. Peter Gleick

Dr. Peter Gleick is an experienced water filtration engineer and technical writer for He is an expert in water purification and filtration, focusing on helping people get clean, safe, and healthy water for domestic use. He has more than 10 years of writing experience and has numerously contributed to leading publications in this field.

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