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10 Best Portable Reverse Osmosis Water Filters Reviewed For 2022

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Tim Rhodes

Everybody wants their water clean and safe, and that’s why portable reverse osmosis water filters are here for.

They make sure that your water is free from sediments and other water impurities.

However, some people can’t have countertop water filters as these require permanent modifications to plumbing, which they can’t do to their rented apartments and condos or some people just always on the road.

They need something that doesn’t have installations and permanent fixtures.

Portable reverse osmosis filters solve that problem and are widely available in different designs and brands from different manufacturers.



Last update on 2023-12-15 / Affiliate links / Images from Amazon Product Advertising API

10 Best Portable Reverse Osmosis Water Filters Reviewed

Below you’ll find the 10 best portable reverse osmosis water filters rated and reviewed.

You’ll find a product description, features and ratings for each one.

1. Abundant Flow Water PRO-Alpha Portable Reverse Osmosis Filter

Abundant Flow Water PRO-Alpha 4 Stage Mikro Alpha Portable Reverse Osmosis Water Filter System with...

Abundant Flow Countertop Water filters are ideal for apartments, cabins, and even travelers which means you can even take them during vacations.

The water undergoes 4 stages of purification which ensures the effectiveness of the filtration process.

It can purify up to 75 gallons of pure water per day which is enough for daily consumption.

Its membrane lasts for 2-4 years which means it does not have to be replaced always.

It is one of the systems which have a long life for a filter membrane.

The system utilizes quick connect fittings to make replacing filters quick and simple.

This countertop water filter system only weighs 3 pounds which makes it easy to bring anywhere.

Relatively cheaper compared to other reverse osmosis water filtration systems.

This reverse osmosis water filter system is a value for money.

Pros & Benefits:

  • Ideal for traveling
  • Light
  • Cost-savings in filters

Check Price and Reviews on Amazon

2. HBrewO Portable Reverse Osmosis Water Filtration System

HbrewO SQ6599092 Portable Reverse Osmosis, 2000 Gallon, 4 Stage RO Purification System with 10...

HBrewO Reverse Osmosis has a 4 Stage purification system using a series of filters and membranes.

This is the only Reverse Osmosis System intended for home brewing.

No other Reverse Osmosis Filter System is optimized for Homebrewing for beer.

Beer brews from tap water often produce unpleasant and inconsistent tastes.

Beer Brewing requires that the water has no contaminant.

There must be uniformity in the water quality to produce a uniform and consistent taste.

The presence of unwanted contaminants causes unpleasant tastes.

The water it purifies is optimized for brewing beer, which provides a pleasant and consistent taste.

Its water test result shows 0 ppm which means sediments and other contaminants are not found.

Water Laboratory results for water testing comes in PPM or Part Per Million.

Its first two filters remove dirt and chemicals like chlorine.

The last two filters remove minerals and charged ions.

This reverse osmosis water filter system is also ideal for aquariums, RVs, hydroponics, and camping.

It also has a handy design which is a plus for portability.

Pros & Benefits:

  • Ideal for brewing
  • Best for portability
  • Consistent results

Check Price and Reviews on Amazon

3. Oceanic Portable RO Reverse Osmosis System

Portable RO Reverse Osmosis Space Saver Water Purification System - 100 GPD | 4 Stage Filtration |...

Ocean Portable System produces 100 gallons per day which makes it high capacity.

You don’t have to worry about running out of drinking water supply.

This is remarkable compared to other Reverse Osmosis Water Filtration System which produces 50 Gallons Per Day the most.

Producing 100 Gallons per Day also means you don’t have to wait.

Having low gallons per day means it is lower in capacity and you have to have far more longer when it runs out of purified water.

These countertop water filters remove fluoride, heavy metals, chlorine, and water hardness.

This reverse osmosis water filter is portable and very convenient to bring anywhere.

It can purify 1 gallon every 20-24 minutes which means you don’t have to worry about running out of potable water.

Its filters last for 8-10 months.

This countertop reverse osmosis system is made in the United States of America which ensures its quality.

Laboratory results show that it removes Arsenic, Aluminum, Bicarbonate, Cyanide, Chloride, Calcium, Sodium, Potassium Barium, Iron, Nitrate, Mercury, Zinc, Selenium, Lead Phosphate, Magnesium Fluoride Nickel, Cadmium Detergent Herbicides Insecticides, Strontium.

These are heavy metals that contribute to water hardness.

These metals and minerals are not good being in the body.

Pros & Benefits:

  • High capacity
  • Portable
  • Zero installation countertop water filters

Check Price and Reviews on Amazon

4. Premier Portable/Travel RO Mini: Reverse Osmosis Drinking Water Filter System

Premier 4 Stage Portable Countertop Mini Reverse Osmosis RO Drinking Water Filtration System | 50...

Premier RO countertop water filter systems are ideal for traveling, you can certainly bring them anywhere.

You can choose water filters to have either a faucet diverter valve or a garden hose adapter.

Be sure to ask for your preference or else they will give you a garden hose adapter in default.

This countertop reverse osmosis system also comes with quick-connect fittings.

The tubes are color-coded which makes the installation easier.

It can produce 50 gallons per day.

This is somehow a low capacity compared to other Reverse Osmosis Water Filtration Systems which can purify up to 100 Gallons per day.

Water purification undergoes 4 stages which ensure your water potability and cleanliness.

The 4 stages of purification remove the unwanted contaminants in the water.

This Reverse Osmosis Water Filtration System Arsenic (93%-96%), Aluminum (86%-90%), Bicarbonate (90%), Cyanide (93%), Chloride (85%-92%), Calcium (94%-98%), Sodium (86.5%-93%), Sulfate (96%-98%), Potassium (84%-95%), etc.

It has a very small filter that has a size of 5 microns which can certainly filter the impurities in the water.

This countertop portable Reverse Osmosis Water Filtration System comes with a Food and Drug Administration-Grade tube which means it has passed under the FDA’s quality.

This Reverse Osmosis Water Filtration System purifies 1 gallon of water every 28-32 min.

This is relatively slow compared to other Reverse Osmosis Water Filtration System.

This Reverse Osmosis Water Filtration System filters water a thousand time more effective than any countertop water filter system which doesn’t have a membrane.

With its slow filtering capacity, it is recommended to collect water in advance every day or every second day to always have water on hand.

Pros & Benefits:

  • Travel friendly
  • Easy to install
  • Preference over valve or garden hose

Check Price and Reviews on Amazon

5. LiquaGen - 4-Stage Reverse Osmosis and Deionization RO/DI Water Filter

LiquaGen 4 Stage Reverse Osmosis and Deionization (RO/DI) Portable Space Saver Water Purification...

LiquaGen’s Reverse Osmosis system has a 4- stage purification process.

This reverse osmosis filtration system is also ideal for aquariums and laboratory testing and other applications which require ultra-pure water.

This is great for first-time buyers of Reverse Osmosis Water Filter Systems.

Due to its Deionization capacity, aquariums are ensured that there are 0 Parts Per Million of contaminants and such.

This makes it optimal for your fish, corals, and other marine life.

This is smaller and requires very little space compared to other portable Reverse Osmosis Systems.

It has long-lasting filters that make you save more from replacement costs.

Using this Reverse Osmosis System results in increased savings from less cost in aquarium maintenance.

Contaminants in aquarium RO water usually result in multiple water replacements in tanks.

It has also been tested for durability and air leaks and proved to have passed.

This RO water filter system produces 50 gallons per day, perfectly enough for your daily consumption.

Its first filter is made of an Inline Sediment Filter, the second is made of an Inline Carbon filter, the third is made of a Reverse Osmosis membrane, and the last filter is made of Inline Resin Cartridge.

This countertop reverse osmosis system is free from Bisphenol A which makes it very safe for the environment.

BPA is usually found in plastic containers and is potentially dangerous.

Pros & Benefits:

  • Durable
  • Portable and light
  • Easy to install and use

Check Price and Reviews on Amazon

6. Alkaline (Raise pH Level) 5-Stage Countertop Water Purification System

Alkaline (Raise pH Level) 5-Stage Countertop Reverse Osmosis Water Purification System, 75 GPD...

Reverse Osmosis Revolution has a 5 stage purification process compared to other system’s 4 Stage process.

This Reverse Osmosis System produces top-quality alkaline water.

It alkalinizes water, increasing the pH from 6-7 to 8-9.5 which results in many health benefits.

According to studies, some diseases are caused by acidic blood pH.

It only takes 60 seconds to install these reverse osmosis systems and you can have your potable water instantly.

No need for any plumbing or any permanent fixture.

It takes 8-12 months before its filter is to be replaced.

Its 5th filter contains a semi-precious mineral stone that is known to aid in the detoxification process of the body.

Detoxification of the body prevents the occurrence of most unwanted diseases.

It removes 200 contaminants in the water.

This is designed and assembled in the United State of America.

This Reverse Osmosis Membrane System removes contaminants including chlorine, chloramines, viruses, bacteria, arsenic, asbestos, VOCs, pesticides, etc.

Its first filter traps the dust and rust particles which helps to increase the life of the system and other membranes.

The second filter is a coconut activated Carbon filter which removes the volatile organic compounds.

At this stage chlorine, cloudiness, offensive odors, colors, and unpleasant tastes are being removed.

The third filter is a Premium-high rejection Thin-Film composite membrane which removes 99% of the dissolved solids.

At this stage, Arsenic, fluoride, lead, chromium, radium, viruses, bacteria, and other unhealthy contaminants are removed from the water.

The fourth filter is made of a premium coconut carbon T33 type filter cartridge which ensures the highest filtering capacity.

The fifth filter contains Tourmaline which is also known as Magic stone, well known to detoxify.

Detoxification maintains a vibrant body and improves cell metabolism.

This Reverse Osmosis System produces 75 gallons per day which is more than other systems 50 Gallons per day.

This has a countertop design that doesn’t require under the sink installations.

For customers located in the New York City area (Brooklyn, Queens, Stated Island, Manhattan).

They ship the Reverse Osmosis System with a slightly different Due to an extremely high level of sediment and rust in municipal water.

This requires changing filters every 12 months.

Pros & Benefits:

  • 5-stage process
  • Alkalinizes water
  • Easy-use

Check Price and Reviews on Amazon

7. KFLOW Reverse Osmosis Water Filter System

KFLOW Countertop Reverse Osmosis System, 4-Stage Water Filter System, Double RO Reverse Osmosis...

Kflow’s unmatched double reverse osmosis system accelerates filtration compared to a single system which will make filtration faster.

Kflow’s Double Reverse Osmosis System doesn’t only speed up the filtration process but also makes it more precise.

It has a filter indicator that could show the remaining filter life of the filters.

You don’t have to second guess your filter’s life with its Intelligent Management System.

It has a Recycling Filtration Technology that allows water to be recycled for another round rather than immediately disposing of as wastewater.

These reverse osmosis systems increase the savings in water purification costs.

However, It’s recommended to circulate not more than 4-time water before the entire tank of freshwater needs to be added.

Due to the increased filtration speed, you don’t have to wait.

It has a very user-friendly design and you can figure it out in no time.

This Reverse Osmosis Water filter system effectively blocks 1,000 contaminants, including Lead, Chlorine, Fluoride, Heavy Metal, mercury, chloramine, chromium, arsenic, radium, to decrease Total Dissolve, improve taste, and removes any unwanted odor.

It has a TDS ( Total Dissolved Solids) detector which can monitor the inlet and outlet water quality in real-time.

It has a Special Algorithm intelligent module which can prolong the life of its cartridges.

You can choose to have different volumes of production, either full, two-thirds, or one-thirds which means you don’t have to run a full volume production should you need a smaller volume only.

This Reverse Osmosis System has a built-in water storage tank.

This system reduces secondary pollution.

It can be a combination of a water dispenser and a countertop water filter system using Reverse Osmosis Technology.

You don’t need to use countertop water filter pitchers or faucets.

As long as there is a power supply you are ready to go.

Pros & Benefits:

  • User-friendly water filter
  • Increases in savings
  • No waiting time

Check Price and Reviews on Amazon

8. AQUA TRU Countertop Water Filtration Purification System

AquaTru Classic Countertop Water Filtration Purification System for PFAS & Other Contaminants with...

Aqua Tru’s reverse osmosis water filtration system creates water similar to bottled water quality, definitely very high quality.

This countertop system just takes a few minutes to set up and certainly, no installations are required.

It looks like a kitchen appliance.

This is an advantage compared to under sink systems that requires installation.

It also has a 4-Stage purification process.

These reverse osmosis systems are certified to remove 82 contaminants.

It removes toxins as Lead 99.1%, Chromium 97.2%, Copper 95.2%, Fluoride 93.5%, Radium 96.4%, and Chlorine 96.6% (to name a few).

You can certainly taste the difference.

This Reverse Osmosis Water Filter system has dispensing buttons which makes using it easier.

It also has a digital display that tells you if you need to change the filters.

When your countertop water filter system doesn’t have a display, you have to only guess if it needs changing based on the water quality.

This system has a quick change twist and seal filters.

This Reverse Osmosis Water Filter System produces 1 gallon in 12-15 minutes, certainly faster compared to other RO Water Filter System.

Aside from its modern design, its design is also compact and sleek.

Pros & Benefits:

  • Elegant design
  • Similar to bottled water quality
  • Digital display

Check Price and Reviews on Amazon

9. Express Water Countertop Reverse Osmosis Water Filtration System

Express Water – Countertop Reverse Osmosis Water Filtration System – 4 Stage RO Water Filter...

Express Water’s Reverse Osmosis Water Filter System is compatible with most faucet types and also has an adapter for the most common faucet types.

You don’t have to worry if this fits with your current faucet.

It removes 99.9% of the contaminants in the water.

You don’t have to worry about the installation of this countertop water filter with its quick set-up design.

The Reverse Osmosis Water Filter System is very easy to change.

This Reverse Osmosis Water Filtration system has a fast flow rate of 3-4 gallons per hour.

An adult could drink 1.55 gallons maximum per day this system produces enough water.

It is the easiest to install with its 4 point connection system.

Its membrane is replaced once a year only.

Great savings!

The quick connect system prevents leaks.

This system is to be used only with cold water since hot water will damage the filters.

Compatible with 13/16” male thread, 13/16” female thread, and 15/16” female thread faucets.

If you don’t have either of these, you can use adapters.

These reverse osmosis systems may be free-standing or may be mounted to the wall, whichever way you like.

It comes with a hygienic system faucet, so you won’t have to drink from the hose.

This countertop design is very convenient.

Pros & Benefits:

  • Compatibility
  • Quick-install
  • Simple design

Check Price and Reviews on Amazon

10. AlcaPure Zero Installation Purifier Reverse Osmosis Countertop Water Filter

AlcaPure Reverse Osmosis Countertop Water Filter by RKIN with Patented High Capacity 4 Stage...

AlcaPure’s zero installation design can provide you clean and healthy water fast.

It has a modern, stylish, and elegant design which makes it pleasant to have in the kitchen.

Its design is perfect for your condos, RVs, offices, and apartments.

You can even place it even in the tightest spaces possible with its rectangular design.

Works just like a water dispenser or a coffee maker.

You can say goodbye to kitchen faucets and leaky valves.

All you have to do is fill the pitcher, push the button and you can walk away and do other things.

You can load and dispense water from the front of the unit.

There are no required top and side clearances.

No assembly required and no valves are needed.

Anybody could set it up.

Very energy-efficient in that it uses less power than a light bulb.

You don’t have to worry about increasing electricity costs.

Returns beneficial minerals like Calcium and Magnesium post-filter.

These are important minerals that contribute to your well-being.

This Reverse Osmosis Drinking Water filter system produces pH-balanced water which is beneficial to your health.

This system is BPA free and safe for the environment.

Aside from the AlcaPure Edition, the OnliPure Edition is also available which removes all the total dissolved solids including Calcium and Magnesium.

Produce half a gallon in 15 minutes.

The first stage is made of the Five-micron Sediment Filter which traps large particles in the outer layer and smaller ones in the inner layer.

Removes the dust and sand in the water.

The second stage is the Coconut based Activated Carbon Block filter which removes harmful chemicals and carcinogens like pesticides.

The third stage is made of a Reverse Osmosis Membrane.

The fourth stage is made of an exclusive AlcaPure and OnliPure Post Filter.

It can produce 75 gallons per day which is above the producing capacity of other Reverse Osmosis Water Filtration System’s 50 Gallons Per Day.

You don’t have to change the membranes until 24 months which means very big savings in membrane recovery.

You get notified with a blinking red light if you have to change the membrane of the Reverse Osmosis Water Filtration System.

Pros & Benefits:

  • Stylish design
  • Membrane replacement system
  • Energy-efficient

Check Price and Reviews on Amazon

Which Is The Best Portable Reverse Osmosis Water Filter?

If you choose to have a reverse osmosis drinking water filter system, you might have preferred it over under sink systems due to portability.

Big space consumption won’t be a problem when choosing portable countertop reverse osmosis systems.

Moreover, the new systems are compatible with your faucets and are very easy to install.

You do not have to call for a plumber, and you can do it by yourself.

How To Choose The Best Countertop Reverse Osmosis Water Filter

When it comes to Portable Reverse Osmosis System, you have a lot to choose from.

Your choice may depend upon the price, weight, compatibility, and design of the various water systems.

There is a water system that exists for different types of consumers.

Have a look at our list above, there are a lot of products to choose from!

Let us know which one is your favorite in the comments below.

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