Countertop Reverse Osmosis Water Filtration System Reviews 

 September 11, 2021

By  Tricia Hale

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Water filtration comes in many different forms and methods, ranging from simple sediment filters, to carbon-based systems that trap contaminants. One method you don’t see as much is reverse osmosis, which is a fairly complicated, yet effective way to rid water of any contaminants that may be present. 

Reverse osmosis systems tend to take up a lot of space, and are thus typically reserved for properties and water systems that can accomodate them. You can find units that fit under sinks or at your water’s source pipe, but these products are still rather large, hard to move, and often expensive. 

Express Water makes a number of different reverse osmosis water treatment systems, which includes a countertop version. The Express Water Countertop Reverse Osmosis Water Filtration System is the answer for those who want pure and great-tasting water from their tap, without the need to install a larger system. 

While a bit unconventional in some aspects, this filtering system works incredibly well, and provides an instant way to obtain nearly 100% pure water in an instant. The system itself uses several different stages/tiers to ensure the water is thoroughly filtered, and requires only a simple connection from the faucet head.

If you’re looking for an easy way to provide reverse osmosis-filtered water at the lowest cost possible, this is the way to do it. 


At first glance, the Express Water Countertop Reverse Osmosis Water Filtration System certainly catches your eye. In some ways, it actually looks like some sort of science experiment, or perhaps a water softening system that’s typically tucked away and out of sight. 

With this system, there’s four bottles attached to each other and affixed to a metal tray, with a metal faucet spout protruding from the center. The system is connected to your tap faucet directly on the faucet head, and uses a special attachment that lets you quickly switch from regular tap water out of the normal faucet to the filtration system’s faucet

When using the filtration system, the water goes through four different stages before it comes out of the faucet head.

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  • The 1st stage is a sediment filter that catches dirt, dust, sand, and rust particles. The 2nd stage is a granular carbon filter that removes contaminants such as chlorine, volatile organic chemicals, and any other odor causing compounds.
  • The 3rd stage involves the actual Reverse Osmosis Membrane, which focuses on the most difficult to remove contaminants such as lead, arsenic, chromium, fluoride, TDS, radium and others. 
  • The 4th and final stage is a Post Activated Carbon Filter that performs a final pass on the water, removing any possible tastes or odors that may have somehow made it through the first three stages.

Depending on the strength of the water flow in your system, the Express Water Countertop Reverse Osmosis Water Filtration System can provide anywhere from 3 to 4 gallons of filtered water per hour. 

Although this does involve leaving an external filtration system hooked up to your faucet and sitting on your counter, the final result is one of the purest waters you can attain — all you have to do is simply turn the faucet on and flip a switch. 

What We Like

  • Removes Nearly All Contaminants: This is a seriously powerful filtration system that will remove practically any type of contaminant from your water. Many conventional household filter systems merely use a carbon filter, but this system uses three additional processes on top of that. If you’re looking for the purest water possible, a four stage reverse osmosis system is unbeatable. 
  • Easy to Install: The Express Water Countertop Reverse Osmosis Water Filtration System uses a quick and easy four-point setup that takes just a few minutes for full installation. In the end, all you’re really doing is hooking up a small hose to your faucet head, something anyone can do.
  • Simple to Use: Getting filtered water from this system is as simple as flipping the switch on your sink’s faucet head. This instantly routes the water into the reverse osmosis system. Once you’re done, simply flip the switch back and you can use the tap on your sink as you would normally.
  • Versatile and Mobile: Since this is a countertop model, you can use it and install it practically anywhere there’s a standard faucet head. No need to worry about lugging around a larger system from location to location. 

What Could be Better

  • Aesthetics: If you’re someone who values a clean, cohesive, and minimal appearance in your kitchen or bathroom, this system is going to throw things off a bit. For whatever reason, Express Water didn’t see it necessary to include a cover for the system, so you’re forced to just place an unsightly conglomerate of plastic tanks on your counter.
  • Pricing: At around [amazon fields="B07Q47KNMT" value="price"], this system is far more expensive than the average faucet head filter. With that said, it does have a much longer lifespan, and filters the water much more effectively, so it will eventually make up for the added cost.
  • Flow Rate: The 3-4 gallon per hour flow rate is a little slow, so if you’re anticipating using the system often, it may be a good idea to pre-fill some larger jugs or containers so you’re not always waiting on it. 

Buying Advice

It’s important to remember that this is a countertop system, so make sure you have the room for it, and don’t mind having it sitting out on the counter all the time. With that said, it’s fairly easy to disconnect the system and place it out of sight when not in use. 


Although it may be a little unsightly and slow, the Express Water Countertop Reverse Osmosis Water Filtration System is the easiest way to get highly purified water instantly, without the need to install a large system. If standard carbon filters won’t cut it for you and your household, this relatively inexpensive system should be your first choice.

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Tricia Hale

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