Express Water Reverse Osmosis System Review

Express Water Reverse Osmosis System Review

Express Water provides one of the best-known reverse osmosis systems around. But what makes the reverse osmosis systems from Express Water so great? We take an honest look in this Express Water Reverse Osmosis System review.

Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 15 x 5, White
Express Water  Reverse Osmosis  System Review

Table of Contents

Express Water RO5DX Review

Express Water’s 5-stage filtration system is considered as one of the most affordable and the best on the market by many. But is this truly the case? Let’s take a look at what to expect from their reverse osmosis filtration system and if this water filter is truly as good as claimed in the reviews.

Filter stages

As mentioned already, this water filtration system has five distinct filtration stages. Each of the stages in the filtration system has a specific purpose.

Sediment: The sediment water filter is quite an important one within this reverse osmosis filtration system. This particular filtration process actually removes suspended particles from the water. These includes particles such as dust, sand, and even rust. If left unchecked, these particles can actually clog a reverse osmosis system.

Many RO system options on the market have a nasty tendency of getting blocked. With the sediment filter addition, this is not a problem for the Express Water RO system.

Carbon: The reverse osmosis system from Express Water also includes special carbon filters. The two carbon filters are meant to remove any unwanted tastes and smells from the water, which can be caused by substances such as chlorine, fluoride, hydrogen sulfide, pesticides, and volcanic organic compounds.

Membrane: Every reverse osmosis filter system contains a semi-permeable membrane, also known as the RO membrane. This is no different for the filter system by Express Water. The semipermeable membrane of the Express Water Filter performs beautifully, and this filtration process can easily be identified on the equipment thanks to the color coded parts. Color coded parts are not limited to the membrane though, because each filtration process has its own color coded characteristics.

Post carbon: The Express Water system also contains a special post carbon filter. Basically, this filter is a second barrier for unwanted smells and odors that could remain after the first carbon filtration process. This ensures the filtered water is completely free of the substances previously mentioned.


Compared to some of the other reverse osmosis system on the market, the Express Water system is quite straightforward to install. In fact, we dare state it is one of the best where simple installation is concerned.

The Express Water system is almost fully assembled upon arrival (approximately 50% assembled). The only thing that is required from the homeowner is connecting the color coded tubes to the other parts of the filter system. And thanks to the presence of the individual colors, this is extremely easy.

While you can install this filter system underneath your sink or on the wall, you do not necessarily have oto. The filter system has a freestanding functionality as well, which is great for those among us who are not that handy.

Please note that some homes with low water pressure might require a special booster pump. Since reverse osmosis does need decent pressure for the filters, a lack of water pressure could cause a slow flow of water.


This filter for drinking water does come with quite a few benefits that are worth considering. Here are the most prominent homeowners should be aware of.


When you compare this filter with other filters on the market today, you will quickly notice that the option from Express is the most affordable. Even though it is quite the efficient system, it is still available for a very affordable price. It proves you do not have to pay a lot to get clean drinking water in your home.

Simple Installation

Most filtration systems need to be installed by a professional technician, but this is not the case for this option. The RO5DX is designed for the average homeowner who has little to no experience with the installation of filters. So, the RO5DX gets a massive plus from us in that department.

Water Flow

Compared to similar systems on the market, the RO5DX is quite decent when it comes to water flow (based on normal water pressure areas). The biggest plus is that you have not wait very long to fill up a jug or a water bottle, as the water flow is pretty much the same compared to your regular water pressure.


Like any system, the RO5DX could do with a couple of improvements here and there. These are some of the main factors we would like to see change for these filters.

Filter Life Could Be Longer

The average lifespan of filters inside the RO5DX is only a year. Compare that to other systems and you will see quite the difference. When you think that most RO membranes have a lifespan between three and five years, that means the RO5DX does not score that well compared to others.

Could Use More Capacity

While the overall capacity of the system is not poor, there is room for improvement. The average RO5DX provides approximately 50 gallons of water daily. Of course, there are other variables to take into consideration here, including water pressure and overall water temperature.

Larger households that use a lot of water during the day might find that the RO5DX does not meet their capacity requirements. That being said, this water system is still wonderful for smaller to medium households with average water use.

Use cases

There are numerous applications for the RO5DX, some of which we already mentioned in this overview. Nevertheless, here is a summary of the recommended uses for the filters from Express Water.

Daily use (Small to medium households)

Those who only use an average amount of water daily and live in a small to medium household will get the most from the RO5DX. With its fifty gallon capacity and easy installation, you will struggle to find a better system out there.


Anyone who travels by caravan regularly, and tends to camp near natural water sources, will find that a reverse osmosis filter matches their requirements best. After all, this system can filter out some of the harshest impurities from natural water sources. If you want to have access to clean water no matter where you put your caravan, then these water filters will do the job perfectly.

Areas Heavy In Volcanic Organic Compounds, Herbicides, And Pesticides

Most filters do not deal with volcanic organic compounds that may be present in your groundwater. The same applies to things such as herbicides and pesticides. Fortunately, they can be filtered out with a reverse osmosis filter such as the one from Express Water. If you live in an area like this, they are well worth looking into.


Compared to most RO systems on the market today, this system scores almost perfectly. While there are some inherent problems such as the fact that the system also removes minerals from the water, it is undoubtedly one of the better and more affordable options on the market.

Of course, the suitability of a RO system in your home or caravan does depend on the area you are in. Some areas do not have VOCs, herbicides, or pesticides in the groundwater, in which case a RO might not be required. So, to get the best possible results for your drinking water, it is always best to do your research first and foremost.

Some people prefer to take their own tests instead of trusting in the data from their local water supplier. Nowadays, tests are available for an affordable price and you can easily determine which substances you need a filter for. If there are VOCs, herbicides and pesticides in your groundwater, it is well-worth looking into the Express RO system.

In conclusion, this RO option is a well-rounded choice and more than suitable for most households.

Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 15 x 5, White
3,699 Reviews
Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 15 x 5, White
  • Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more.
  • Water Purification System: Drink the healthiest water on Earth. All our water filters are specially engineered to work together, producing the safest and best tasting water you’ll ever drink
  • Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system
  • Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water
  • Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture

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