Is a Countertop Reverse Osmosis System Right for Me? Your Expert Guide

This post features the following key takeaways:
• Countertop reverse osmosis (RO) systems provide the cleanest, safest drinking water without requiring complex plumbing installations.
• A countertop RO system is more convenient, less expensive and better for the environment than buying bottled water.
• Countertop RO systems are ideal for residences where plumbing installations aren’t possible, such as apartments, dorms and high-rise buildings.
• The PurASure Countertop RO System provides the most benefits of any countertop RO system on the market.

Do you trust your tap water? You shouldn’t because it’s not as clean as it should be. The water in major cities like Chicago contains many dangerous pollutants like lead and hexavalent chromium.

What about the water you buy at the grocery store? Unfortunately, even bottled water isn’t 100% safe to drink either. Besides, who wants to pay all that money to lug those heavy plastic bottles around? And think about the harm to the environment all that plastic waste does!

The fact is, if you want safer, healthier water in your home, you need a trustworthy water filtration system.

But water filtration systems require licensed plumbing installation. What if you live in an apartment or dorm and can’t get a filter installed under your sink? And what if you can’t even afford to have a water filter professionally installed?

If all these problems hit close to home, we have good news for you. A countertop reverse osmosis system is the answer to your water purification needs!

In this post, we’ll explain why a countertop RO system is the most affordable, highly effective and low-maintenance solution. Plus, if you stick around to the end, we’ll give our recommendation for the best countertop RO system on the market!

Intrigued? Keep reading!

What is a Countertop Reverse Osmosis (RO) System?

A countertop RO system is an appliance the size of a coffee maker, which you plug into the wall and use to filter your tap water. The appliance typically comes with a detachable reservoir that you can fill with water from your kitchen sink and then reattach to the system. The countertop RO then takes that polluted tap water and purifies it in a matter of minutes.

We know what you’re thinking. How much can a small machine do to protect me from the many contaminants in my water? The answer: a lot!

The Incredible Effectiveness of RO Systems

Reverse osmosis filtration is the most thorough and effective water treatment technique on the market today. According to the nonprofit water watchdog organization the Environmental Working Group (EWG), reverse osmosis vastly outperforms standard carbon filtration. RO filters reduce many harmful toxins carbon filters cannot, including nitrate, perchlorate, arsenic and hexavalent chromium.

In fact, the best RO systems are so effective that they remove 99% of total dissolved solids (TDS) from tap water!

How RO Systems Work

As you might imagine, RO systems use the scientific process of reverse osmosis to purify water. The method works by pushing contaminated water through a semipermeable membrane. This membrane allows water through to the other side but captures many dissolved inorganic solids. The water becomes much purer as a result.

But reverse osmosis isn’t the only filtration technique RO systems use. They also incorporate multiple other filters to ensure the water comes out as clean as possible. These include pre-filters, which remove things like sediment and chlorine before RO filtration, and post-filters, which ensure the water is as clean and delicious as can be before sending it to your glass.

One of the biggest criticisms of RO filters is that they remove too much from the water. Indeed, reverse osmosis is so effective that it can remove good minerals like calcium and magnesium along with the bad stuff. This is why some critics call reverse osmosis water dead water.

However, this isn’t an issue for the best RO systems. They keep the water from coming out “dead” by adding essential minerals back into the water. The result is the cleanest and healthiest drinking water possible for your home and family.

All This in One Tiny Machine!

It’s believable that a whole-home RO system or a system installed under the sink can do the things described above. But can a system you plug in on your countertop really do that too? It can because it uses the same filtration technology!

A reverse osmosis water filter for the countertop contains narrow cylindrical filters. Each filter handles one of the filtration stages we described above. These filters fit snugly in the device and are easy to access and replace. Therefore, the complex RO filtration process doesn’t need much space. It can radically transform your water within the compact machine. Plus, Angel Water’s PurASure alkaline system can purify the water and increase the Ph to an ideal level of 9.5-10.5.

A man holds a glass of reverse osmosis water and tests it for total dissolved solids.
The PurASure Countertop RO System drastically reduces the amount of total dissolved solids (TDS) in the water.

Who Should Get a Countertop RO System?

The awesome purifying power of reverse osmosis is now available in a portable unit the size of a Keurig coffee maker! This is fantastic news for people who, up until now, thought they had to settle for the rancid water coming from their faucets!

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A countertop RO system is an excellent option for:

  • Apartments and rented homes with strict plumbing restrictions
  • College dormitories and shared living spaces
  • Temporary living situations or frequent relocation
  • High-rise buildings

You will especially appreciate one of these systems if you’re sick of buying and lugging around plastic water bottles. With clean water in your home, you’ll save a fortune on buying water. Plus, you’ll do wonders for the environment by cutting down on all that plastic waste.

Of course, countertop reverse osmosis isn’t the best option for everyone. If you own your home, an under-the-sink or whole-house RO system will be superior. These systems provide continuous filtration without you having to fill up a detachable reservoir at your sink. They are more expensive, but this can be worth it for the extra convenience.

What is the Best Countertop RO System?

Now that you’re acquainted with the wonders of portable reverse osmosis systems, you’re probably eager to find out which is best. After extensive research and comparison, we’ve determined that the PurASure Countertop RO System is the ultimate choice for your home!

What sets it apart from the competition? Let’s dive into the details and find out!

NSF 58 Certification

The PurASure Countertop RO System proudly boasts NSF 58 certification. This means it meets the rigorous standards of the National Sanitation Foundation for reducing contaminants like lead, hexavalent chromium and other harmful impurities. For this reason, you can trust the system to deliver the cleanest, purest water possible!

The system is certified to reduce a vast assortment of toxins down to safe levels for consumption, including:

  • Arsenic
  • Barium
  • Copper
  • Fluoride
  • Hexavalent Chromium
  • Lead
  • Nitrate
  • Nitrite
  • Perchlorate
  • Radium 226/228
  • And more!

On top of this, the filter also boasts other important certifications from the National Sanitation Foundation. It is NSF 53-certified to reduce harmful toxins like trihalomethanes and NSF 42-certified to reduce chlorine and chloramine.


The PurASure Countertop RO System is constructed from BPA-free materials, ensuring that your water remains free of toxic chemicals that can leach from some plastics. The system also comes with a 64 oz, BPA-free glass carafe, which you can fill with water and put in your fridge to keep it chilled. Your health and safety are of paramount importance, and PurASure has you covered.

Advanced Four-Stage Filtration Process

The PurASure filter uses an advanced four-stage filtration process to guarantee the highest quality water for you and your family. Here’s a quick breakdown of each stage:

  1. The water goes through a pre-filter to remove contaminants, like sediment and dirt.
  2. A carbon filter reduces harmful toxins like chlorine and chloramine.
  3. The reverse osmosis membrane drastically reduces the many toxins listed above.
  4. Finally, an alkaline VOC filter removes dangerous organic compounds, adds in good essential minerals and raises the pH for healthier alkaline water.

Water-Saving Efficiency

This system also wastes less water than most other countertop RO filters. It has a 4:1 water-saving efficiency ratio, which means it produces four times as much pure water as the contaminated water it removes.

Some countertop RO systems are much less eco-friendly than this because they dispose of as much water as they produce. In this way, you’ll help the environment just as much as you’ll help your water bill with the PurASure Countertop RO.

Low Maintenance Convenience

Enjoying the PurASure Countertop RO System requires minimal effort on your part. Simply plug it in, fill the attached reservoir with water and let it do its thing. The beautifully designed appliance blends in perfectly with any kitchen décor.

Things are just as easy when it comes to maintaining the system. The device boasts intelligent filter replacement alerts, easy access filters and a straightforward replacement schedule: Replace the pre-carbon filter once every six months, the RO filter once every two years and the alkaline VOC filter once a year. (These replacement timelines may vary slightly depending on the quality of your water.)

Countertop RO system on a kitchen countertop
The PurASure Countertop Reverse Osmosis System is the ultimate choice for your home!

Want a Quality RO System for Your Countertop?

As you can see, a countertop reverse osmosis system is an incredibly convenient way to get the safe and healthy water your family deserves. It’s a great option for apartments and households in which plumbing installation isn’t possible. A system like the PurASure Countertop RO is a worthwhile investment for the many incredible benefits it offers.

Are you interested in getting the PurASure Countertop RO System for your home? You can visit the page below to order now and have it shipped to your door!

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Please give us a call at (847) 382-7800 or visit our water softener page to learn more.

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