Express Water RO5DX 5-Stage Reverse Osmosis System Review

Express Water have a firm belief that “Clean healthy water is the simplest thing in the world. And they can make your water simple”. Express water is known for making easy to use and install water filtration systems. They cater to all of your needs. Express water don’t claim any Certification, but still, we are writing Express water RO5DX Review because it is still the best companion to facilitate you.

It is the best option to avail for those who are on the tight budget. Although, still it is recommended to go through the complete review before making any final decision.


Express water RO5DX Review

Express Water RO5DX 5 Stage Reverse Osmosis System ReviewTo have the high-end premium reverse osmosis system does not mean spending a lot of money. You can have the near to premium reverse osmosis system even in a Pocket-friendly price.

You are here, it means you don’t need to do more research about the budget reverse osmosis system”. We have already done hours of research for you.

Express water RO5DX is one of the budget choices available in the market. It has the 5 stages of the filtration process. You will have the clean drinking water straight to your faucet of high quality. You don’t have to worry about this.

This under sink Drinking water filter has the capacity of producing 50 Gallons per day. Water has a higher flow rate of 0.8 gallons per minute. The wastewater ratio is 3:1.

The filters are of high quality. You will not be busy all the time in replacing filters. Even, you will get an extra set of replacement filters inside the box. The filters are easy to replace.

The installation process is a simpler one, you can get it installed within 1 hour. If you are not enough confident to do it by yourself, you can call the professional or can learn the procedure by glancing the Instructions manual and the Video resources.

It comes with all the essentials and a stylish faucet. This faucet can be installed in any kind of kitchen. You don’t need to put more effort to set up the faucet in your kitchen.

Have a look at customers review


Everyone looked for the efficient RO water system. Although, the efficient system at a reasonable price is hard to find. Express water is one of them who is recognized because of providing an efficient system.

RO5DX wastes 3 gallons of water to produce a single gallon of purified water. It is equal to most of the other premium reverse osmosis systems like iSpring RCC7AK.

The water waste ratio below or equal to 4:1 is above average and considered as the efficient one.

Filtration Process

Express water positioned itself as the provider of the cleanest water on the earth. You can say it a marketing slogan but to some extent, customers are admitting this statement.

Express water incorporated 5 stages of the filtration process. For most people, stages matter a lot although case studies show that the quality of components should be the foremost consideration of every customer before purchasing a reverse osmosis system.

It has all the basic essential filtration stages, capable of removing 99% of contaminants from your water. If you are interested in the system with add-ons like Re-mineralization or UV Light stages. Then this system is not for, have a look at other recommended Residential reverse osmosis systems.

The Filters of express water RO5DX are tested and meet the standards of NSF. The filtration process is identical to all the 5-stage reverse osmosis systems.

Let’s have a quick recap of how it works:

When the feed water goes through the first stage it gets cleaned from dust, rust, and from all the possible sediments. Second and third pre-filters removes all the odors, taste, and chemicals from water.

These pre-filters treat the water so that RO Membrane can focus on eliminating all the total dissolved solids from water. The life of RO-membrane depends upon the performance of pre-filters. If Pre-filters failed to purify water and pass the Feedwater pressure as they receive, then your RO-membrane can be damaged hardly.

Post-filter (5th stage/filter) ensures to remove all the remaining odor before it reaches your faucet.

After Passing through these stages now you have fresh purified drinking water.

Filter Replacement

You have to replace the cartridge filters to keep the performance at its maximum level. The duration of filter replacement differs from one another.

You can find an extra set of replacement filters inside the box of RO5DX. So, you don’t need to worry about filter replacement cost for at least a year.

It is recommended to replace:

Pre-filters (stage 1, 2 &3) after every 6 months.

RO-Membrane after 1-2 years

Post-filter after 1 year

SpecificationInside the Box
  • Manufacturer: Express water
  • Model: RO5DX
  • Weight:8 Pounds
  • Dimension:2 x 18.8 x 18.1 inches
  • Faucet flow rate:8 Gallons Per minute
  • Production: 50 Gallons per Day
  • Water tank Size:2 Gallon water capacity
  • Warranty: 1-Year limited warranty
  • Certified Storage tank
  • Spare set of replacement filters
  • RO Faucet
  • Leak stopper
  • Drain saddle
  • Quick connect tubing
  • Feed valve
  • Housing wrenches


Express water is aware of the hassle that customers have for installation. They have designed it by keeping their customers in mind. It is easy to install and maintain for every household. It can be installed as long as within 1 hour. You don’t need to have some previous work experience to get it done.

It’s better to have a look at the instructions manual before starting the installation. They are well detailed. Following video resources would be also helpful in understanding the whole process.



  • Pocket Friendly
  • Ease of installation
  • Spare set of replacement filters
  • Remove all possible TDS
  • Life time Responsive tech customer support
  • 1 year limited warranty
  • Instructions manual is little bit confusing.
  • Not assembled in the USA.

Final Thoughts

Express water is not as well well-known as other companies like APEC and iSpring, but it is still getting the higher number of positive reviews. The reviews on Amazon ensures the credibility and the quality of the component.

Express water always serve, what you paid for. Although, it is not the USA Assembled system which makes it a comparatively affordable system. Even though, it is the best choice for those who are on a tight budget. It performs well with municipal water and suits for the above average-sized family.

Its easy quick installation process and the drop & Go filter change are interesting parts to look at. The water output quality is premium and you have nothing to worry about.

If you are more concerned with the systems assembled in the USA, iSpring RCC7 and APEC ROES-50 would be the best fit for you, as they are almost similar to this under sink reverse osmosis system.

After hours of research, it is in our recommended list because of its affordability, higher water flows with lesser water waste, ease of installation, and filtration outcome. Give it a try, you will never regret your decision.

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We hope, now you have all the essential knowledge about this Water filtration system.

If you are still confused, Let your friends helping you in making the final decision. DO Share and get Some Feedback from friends too. 🙂

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