The Global Water RO-505 5-Stage Reverse Osmosis System is of high quality and it always offers great tasting pure water. Its performance will not disappoint anyone who has purchased it.

This system is NSF certified and can reduce up to 99% of a lot of contaminants and dissolved solids, including arsenic, chlorine, fluoride, lead, bacteria, etc.

This system is designed to be easy to install and you can set it up very quickly. And then it can work for you. The color-coded filters are easy to identify and there are clear instructions on their labels.

All the parts are lead-free and both the steel tank and faucet are NSF certified. Plus, its replacement parts are universal and are safe to use.

What’s more, as a durable water filtration system, it can always provide your family with high-quality RO water to cook and cook. Once you have it, you will find it is so easy to access pure water to consume. There is no difficulty or problem.

The system has been tested and is guaranteed to last a very long time. It is also guaranteed it will provide high-quality drinking water without any problems or difficulties.

Water Filter Design

High-Quality Filters

This best reverse osmosis system offers durable water filters which can always offer pure drinking water. The durability means you can enjoy safe and pure water for a long time with worrying about any issue or problem. Plus, in the package, there are 4 extra replacement filters for replacing. Therefore, you can change your water filters as soon as possible once they are ineffective. Of course, you also need to keep extra filters on hand.

As a high-quality and high-performance water filtration system, it can move more contaminants than other similar RO systems. This is because it has premium NSF filters which can remove dissolved solids and remove up to 99% of other contaminants. Its filter can remove arsenic, bacteria, chlorine, fluoride, and more.

5-Stage Filtration System

This system has 5 stages to filter out contaminants. Each filter is used to remove different contaminants. And before the RO stage, the pre-filters are used to remove large contaminants and this also can help protect the RO membrane. The RO membrane can filter out the tiniest contaminants in our tap water. Therefore, this system can offer the pure water.

Ease of Installation

This system comes with everything you need to install it, so you don’t need to buy anything. And it is designed to be easy to set up. Don’t worry about it. You can read its instructions and follow it step by step. It is so easy. The installation of different models is similar. If you are not confident, you can watch some videos, too.

Pros & Cons


  • Water output: 50 gallons per day
  • It is noise-free and silent when working
  • It doesn’t use electricity or batteries
  • Easy to install and doesn’t need maintenance
  • Auto shut off when the water tank reaches 65%
  • Feature a compact and sturdy design


  • Doesn’t come with a remineralization filter, so it doesn’t add safe minerals back. For people who need a remineralization filter, it is not a good choice.
  • A higher ratio of the waste water to filtered water


  • Question: Does this system require any source of power?
  • Answer: No, it doesn’t.
  • Question: Can anyone install this system? And how much time does the installation need?
  • Answer: Yes, even a 60-man can install it. It may take about 1 hour to install it.
  • Question: Are all the materials BPA-free?
  • Answer: Yes, of course.
  • Question: Does it come with extra filters?
  • Answer: Yes, it comes with 2 sets and one is for replacement.


If you are looking for a high quality reverse osmosis system that has been tested, this best reverse osmosis system is one of your best choices. And it comes with everything you need for its installation. Many users spoke highly of its performance and its affordability. It is so very cheap, so it will not leave a hole in your pocket.

With this 5-stage RO system, 1000+ pollutants and contaminants can be removed, so you can get pure water to drink. All the filters are NSF certified premium filters. That’s why it can remove up to 99% of 1000+ contaminants, like fluoride, chlorine, heavy metals, bacteria, etc.

The installation is also pretty easy and it offers all high-quality connect fittings. Therefore, with basic DIY skills, you can install it yourself without hiring a plumber to do the job. Of course, if you don’t would like to do that, a plumber can help a lot.

All in all, as one of the best reverse osmosis system and the most popular ones, it is worth buying.

Global Water RO-505 5-Stage Reverse Osmosis System Review

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