Top 5 Best Portable Reverse Osmosis Systems 🥇(December 2024)

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Charlie W. Palmer

Water Systems Expert & Founder at Water Systems Guide

Hi! I'm Charlie. If you're wondering why I started WaterSystemsGuide, it's because I previously worked as a water systems specialist/consultant for a large government initiative in California, USA. However, after leaving, I wanted to provide advice and information for others, to pass my knowledge on, so I created this site!

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How Does Reverse Osmosis Work

Last Updated: 21 December 2024

In this article, we’re going to be talking about the best portable reverse osmosis water systems that are available on the market.

Portable and countertop reverse osmosis systems are used to remove poisonous substances, contaminants, bacteria, and much more from our water supply, so that the drinking water is clean and able to be consumed in a safe way.

Portable RO systems have several filtering stages, which are used in combination to remove these substances, contaminants, and bacteria.

If you’re worried about the quality of drinking water in your home or commercial environment, experts are also giving even more reasons to be concerned.

Why? Well, between 1982 and 2015, millions of Americans got their drinking water from a source that was in violation of the Safe Drinking Act.

And even now, researchers at the nonprofit Environmental Working Group and Northeastern University found out last year that at least 43 US states have sites where toxic fluorinated compounds known as PFAs contaminate drinking water.

That they make your tap water safe to drink isn’t the only reason why you might want to invest in a high-quality tanked or tankless RO system.

These water filters also improve the taste of your water, eliminate up to 99% of all contaminants, neutralize any odors, and improve its quality.

Table of Contents

Best Portable Reverse Osmosis Systems Review – Top 5

Countertop Portable Universal Reverse Osmosis RO Purification Water System – 5 Stage – $ – Skip to section
Waterdrop Countertop RO Reverse Osmosis Drinking Water Filtration System – 5 Stage – $$ – Skip to section
APEC Water Systems RO-CTOP-C Portable Countertop RO Water System – 4 Stage – $$ – Skip to section

AlcaPure RKIN Portable Countertop Reverse Osmosis System – 4 Stage – $$$ – Skip to section
AQUA TRU Countertop Portable RO Water Filtration Purification System – 4 Stage – $$$$ – Skip to section

Countertop Portable Universal Reverse Osmosis RO Purification Water System – 5 Stage – $

Technical Specs

Filter Stages: 5-Stage
Gallons per minute (GPM): 0.05

Water pressure: N/A

General Specs

Price: $
Dimensions: 14 x 7 x 7 inches

Weight: 6 pounds

Features

This RO system purifies 1 gallon of water every 20-24 min (3 gallons per hour). RO membrane splits water with 0.0005-micron filtration, approximately 1000 times more effective than any water filter without membrane).

It can be installed in less than 60 seconds, and requires no plumbing or permanent fixtures.

This is a 5-stage RO unit, and removes more than 600 contaminants, including all major dangerous contaminants, including chlorine, chloramines, viruses, bacteria, arsenic, asbestos, VOCs, pesticides and etc. It also significantly reduces fluoride by 85-90%.

1st stage: Premium Quick-Connect 5 micron sediment filter. Dust and rust particles are trapped here in a filter which also extends the life of the system and the membrane.
2nd stage: Premium Quick-Connect T28 coconut activated carbon filter – VOCs (volatile organic compounds) and other common chemicals are removed from the water in this stage. This filter also removes chlorine, cloudiness, offensive odors, colors, and unpleasant tastes.

3rd stage: Premium High Rejection TFC type reverse osmosis membrane (made in the USA). 96%-99% of total dissolved solids (TDS) and other elements are removed in this stage. Arsenic, fluoride, lead, chromium, radium, viruses, bacteria, and other unhealthy contaminants are removed from the water. 75 gallon per day capacity.
4th stage: Produces high-quality water with deionizing mixed bed polishing filter. Made by Omnipure (USA). This stage produces exceptionally clean water with a minimum TOC background, and perfect fit for the removal of radiation.
5th stage: Premium Coconut Carbon T33 type filter cartridge.

Pros

Quick & easy installation
Very affordable
Removes common contaminants

5-Stage
5-Micron sediment filter
Suitable for general usage

Cons

Get what you pay for
Low GPH/GPM filtering

Waterdrop Countertop RO Reverse Osmosis Drinking Water Filtration System – 5 Stage – $$

Technical Specs

Filter Stages: 5-Stage
Gallons per minute (GPM): N/A
Water pressure: N/A

General Specs

Price: $$
Dimensions: 14.76 x 8.35 x 13.9 inches
Weight: 13.12 pounds

Features

The M5 Countertop RO Water Filtration System gives you purified drinking water on demand.

Not only is it a powerful reverse osmosis water filter system, it also has a large portable water pitcher to let you enjoy fresh, pure-tasting water all the time! It redefines the water purification challenge, as it offers excellent performance without sacrificing convenience or practicality.

This 5-stage system boasts a filtration accuracy of 0.0001μm. This allows it to efficiently and naturally remove 99.99% of harmful substances, TDS (Total Dissolved Solids), calcium, magnesium, and sodium from your drinking water. Unlike other traditional RO systems, not having a built-in storage tank prevents secondary pollution from the water sitting in the machine for long periods. When it comes to reliability, the M5 is a great choice.

You don’t need to have a plug near your sink to use this countertop RO water filtration system. Being non-electric and pumpless makes it convenient to set-up. Not having a pump means that it also produces significantly low noise – less than 20.7dB. It will not disrupt your daily life. Maintain the tranquility of your kitchen with this quiet water filter!

This 80oz pitcher is made out of pure Tritan plastic, which is a food-grade and BPA-free material that’s lightweight yet tough against impacts. Fill up the pitcher with as much water as you need. Highlight your cuisine with pure-tasting water at any time.

The 5-stage filter cartridge has been designed to last for 12 months or up to 550 gallons of water. One cartridge saves 7,000 300ml water bottles. M5 saves you money and reduces the need for maintenance.

M5 features a streamlined appearance that complements your interior design instead of being a bulky, out of place eyesore. It is durable against scratches, stains, or other blemishes. Whether at home or the office, this is a filter that won’t disappoint.

Pros

Quick installation and usage
Very affordable
Removes common contaminants

Highly accurate filtration (0.0001μm)
5-Stage
Long-lasting filter cartridge

No pump or electricity needed
Suitable for general usage

Cons

80 oz capacity

APEC Water Systems RO-CTOP-C Portable Countertop RO Water System – 4 Stage – $$

Technical Specs

Filter Stages: 4-Stage
Gallons per minute (GPM): 0.0625

Water pressure: 40-80 psi

General Specs

Price: $$
Dimensions: 15.5 x 6.5 x 6.5 inches

Weight: 10 pounds

Features

This light and compact RO-CTOP-C system is specifically engineered to offer exceptional portability, convenience and ease of use. It hooks up to most existing standard faucet in seconds – no installation required! If you want an unlimited amount of bottled-water-quality water that you can take with you anywhere, this is your dream system! Perfect for apartments, condominiums, motor homes, retirement homes, and students. Provides safe drinking water with capacity up to 90 gallons per day (at 60 psi water pressure) to fill any water storage container you provide. The designed aluminum case makes it look stylish on your countertop.

Enjoy unlimited ultra-fresh, clean, great-tasting water right at home for the best quality water for cooking and making delicious coffee, tea & ice. Save money, time, and hassle of buying costly, heavy bottled water and live healthier with ultra-safe water that is 99% contaminant free. The system is designed to remove contaminants such as chlorine, taste, odor, toxic fluoride, arsenic, lead, and chromium.

All US-made super high capacity filters:

1st stage: premium quick-connect 5-micron sediment filter – removes dust, particles, and rust. Protects and extends the life of the membrane.
2nd stage: premium quick-connect coconut shell activated carbon filter – gets rid of unpleasant chlorine, odors, cloudiness, & colors. Also removes VOCs and other common chemicals from the water.

3rd stage: select FILMTEC (Dow Chemical) high rejection TFC reverse osmosis membrane. Removes up to 99% of total dissolved solids (TDS) and contaminants such as arsenic, lead, fluoride, chromium, radium and much more.
4th stage: premium quick-connect coconut shell activated carbon filter -removes any possible residual tastes.

Pros

Easy installation with standard faucet

Very affordable
Removes common contaminants
Up to 99% removal rate

Free lifetime support
Lightweight and compact
Designed, engineered and assembled in USA

Cons

Not a 5-Stage unit

AlcaPure RKIN Portable Countertop Reverse Osmosis System – 4 Stage – $$$

Technical Specs

Filter Stages: 4-Stage
Gallons per minute (GPM): 0.0625
Water pressure: 40-80 psi

General Specs

Price: $$$
Dimensions: 14.5 x 9.5 x 16.25 inches
Weight: 23 pounds

Features

The AlcaPure RKIN Reverse Osmosis water filter removes up to 99% of all contaminants from your water, including Fluoride, Chlorine, Heavy Metals, Lead, PFOA, PFOS, & others.

The unit will notify you for the recommended filter change via Blinking Red Light every 12 months.

Depending on local water quality and usage the OnliPure post filter might need to be replaced sooner to maintain 0 TDS. Detailed, easy to follow, step by step instructions and videos are available for filter replacements.

In about 15 minutes the top container will be filled with 0.5 gallons of purified water and the unit will turn itself off.

Finally, with a 50% recovery rate, it’s the highest among ro water filter systems.

It includes a 1-year money back guarantee and 1-year warranty.

Stage 1 – Five Micron Sediment Filter
Unique gradient pore structure that traps large particles in its outer layer and smaller ones in the inner layer. It effectively removes particles such as sand, sediment, and rust.
Stage 2 – Coconut Based Activated Carbon Block Filter – Removes harmful chemical residues and carcinogens such as THM’s and pesticides. Large adsorption capability effectively removes odours and VOC’s.
Stage 3 – Reverse Osmosis Membrane – 75 Gallon Per Day Reverse Osmosis Membrane purifies water virtually from all the harmful contaminants. It’s the heart of the reverse osmosis system.

Stage 4 – Exclusive AlcaPure or OnliPure Post Filter – AlcaPure with beneficial minerals – Calcium and Magnesium for Alkaline pH. OnliPure with specialty Ion Exchange Media inside for ZERO TDS.

Pros

Easy installation
Suitable for small spaces

Aesthetically pleasing
Two colors to choose from (silver/blue and black/silver)
Removes common contaminants

Up to 99% removal rate
1-year warranty
Good customer reviews

Cons

More expensive than other units

AQUA TRU Countertop Portable RO Water Filtration Purification System – 4 Stage – $$$$

Technical Specs

Filter Stages: 4-Stage
Gallons per minute (GPM): 0.066
Water pressure: N/A

General Specs

Price: $$$$
Dimensions: 18 x 18 x 15 inches
Weight: 22.6 pounds

Features

AquaTru’s patented Ultra Reverse Osmosis technology miniaturizes the same reverse osmosis technology used by all the major bottled brands and puts it into a compact countertop water purifier.

The AquaTru is certified to NSF standards to remove 82 contaminants, including chlorine, fluoride, lead, arsenic, PFOS, PFOAS, nitrate, and many more.

It uses patented, 4-Stage Ultra Reverse Osmosis Technology and requires no installation or plumbing. Just plug in and start purifying.

The easy dispensing button makes filling up your glass fast and convenient. The dispensing tank is also removable to store cool water in the fridge or to use as a pitcher.

AquaTru’s compact and portable design sits easily on your counter. (Fits under standard countertops). The digital display indicates when it’s time to change filters.

Stage 1: Mechanical Pre-Filter
Stage 2: Reverse Osmosis Pre-Filter
Stage 3: US-Made Reverse Osmosis Membrane
Stage 4: Activated Carbon Filter

Pros

Requires no installation or plumbing
Easy to use
Sleek design
Suitable for small spaces
Aesthetically pleasing
Removes up to 82 contaminants
Decent customer reviews

Cons

More expensive than other units

Conclusion

All-in-all, we realize that everyone will have different needs and requirements from their ideal portable RO system, and therefore we cannot provide specific recommendations for your needs.

However, we’ve clearly displayed the Filtration Stages and Cost ($$$) of each of the units, making it easier for you to make your decision and purchase the right unit for you.

Countertop Portable Universal Reverse Osmosis RO Purification Water System – 5 Stage – $ – Skip to section
Waterdrop Countertop RO Reverse Osmosis Drinking Water Filtration System – 5 Stage – $$ – Skip to section
APEC Water Systems RO-CTOP-C Portable Countertop RO Water System – 4 Stage – $$ – Skip to section
AlcaPure RKIN Portable Countertop Reverse Osmosis System – 4 Stage – $$$ – Skip to section
AQUA TRU Countertop Portable RO Water Filtration Purification System – 4 Stage – $$$$ – Skip to section

Summary

Reviewer

Charlie W. Palmer

Review Date

Reviewed Item

Portable Reverse Osmosis Systems

Author Rating

Product Name

Portable Reverse Osmosis Systems

Best Portable Reverse Osmosis Systems Review – Top 5

Countertop Portable Universal Reverse Osmosis RO Purification Water System – 5 Stage – $

Technical Specs

General Specs

Features

Pros

Cons

Waterdrop Countertop RO Reverse Osmosis Drinking Water Filtration System – 5 Stage – $$

Technical Specs

General Specs

Features

Pros

Cons

Technical Specs

General Specs

Features

Pros

Cons

AlcaPure RKIN Portable Countertop Reverse Osmosis System – 4 Stage – $$$

Technical Specs

General Specs

Features

Pros

Cons

AQUA TRU Countertop Portable RO Water Filtration Purification System – 4 Stage – $$$$

Technical Specs

General Specs

Features

Pros

Cons

Conclusion

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