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Best Reverse Osmosis Water Filtration Systems of UK 2024

by Dr. Jonathan Doyle - Updated January 23, 2024
Since the 1980s, reverse osmosis (RO) has been a big step forward in making home water cleaner. RO systems have become an important part of many modern homes because they can remove up to 99.9% of pollutants from drinking water. An increasing number of companies are making RO systems, so they can be found in many homes around the world.
Since there are so many choices on the market, it can be hard to pick the best RO water filter. Because of this long piece of writing, a list of the RO water filters on the market right now has been made. Our goal is to give you the information you need to make an informed purchase choice that is good for your family’s health and safety.

Tankless Reverse Osmosis System Waterdrop G3P600

The NSF/ANSI 372 certification for lead-free material and the NSF/ANSI 58 certification for TDS (Total Dissolved Solids) reduction means that the Waterdrop G3P600 reverse osmosis system is safe to use. This water filtration system meets the safety standards of both the EU and the UKCA.
An improved system, the G3P600 under sink reverse osmosis system makes 600 gallons of clean water each day. This RO system has a steady flow rate of water that can fill an 8-ounce cup in 8 seconds. This makes it great for drinking and washing vegetables and fruits.
As part of the reverse osmosis device, there is a smart display tap. For example, the TDS monitor tells you about the quality of your filtered water, and the filter life tracker tells you when to change your filter. The way you live is now easier, and you can use water more efficiently.
clean water and water filter units

Countertop AquaTru Classic Water Purifiers

With AquaTru, you can turn the water that comes out of your tap into clean, safe drinking water. You can get great, clean water at your disposal without having to build or hook up plumbing. This machine has been approved by the NSF to get rid of nitrates, lead, PFAS, arsenic, fluoride, chlorine, and other toxins. The filters have a lifespan of six months to two years.

Waterdrop A1 Countertop RO Water Dispenser

This hot and cold-water filter is great for families who want easy access to water at different temperatures. The 0.0001 μm RO membrane in this dispenser gets rid of more than 1,000 pollutants very well, including large particles, PFAS, fluoride, calcium, radium, nitrate, lead, chromium, arsenic, and chloride. The UV-LED light also does a good job of sterilizing the dual water tanks.
waterdrop countertop ro system a1
The better cooling compressor in this water dispenser, which is found in freezers, lets it provide water that is as cold as 41°F. It’s also great for making tea, coffee, and other drinks because you can change the temperature from 41°F to 203°F. Three modes make it easier for users: night, off-home, and altitude.

The RO500AK-BN+UVF8 Tankless RO System from iSpring

The smart RO500 Series reverse osmosis system has a filter change indicator, real-time tracking of water quality, and short filter replacement times for ease of use. It can handle 500 gallons of water per day and has a strong RO500 Series membrane that lets it get a 2:1 ratio of pure water to garbage.
It keeps giving you water at a steady flow rate of up to 0.4 gallons per minute. The built-in water route makes sure that users are safe and have an easy time by fixing leaks and making installation faster by cutting down on the number of links needed.

APEC Tankless RO Water Filter ROTL-AIO

If you use this tankless reverse osmosis water filter, you can make drinking water that is free of up to 99% of harmful pollutants, chlorine, and bad tastes and smells. RO water makes everything taste better, so this will make ice cubes, tea, and coffee taste better. It also comes with a high-end designer tap made of metal that is 100% lead-free and looks great next to your main tap on the counter.
a hand holding a glass of water
With an impressive 2:1 ratio of clean to wastewater, the reverse osmosis technology makes good use of water. This means that two cups of clean water are made for every cup of trash. This term, Waterdrop does better. The G3P600 tankless RO system only produces one cup of wastewater when generates three cups of filtered water, and this cuts down on water loss.

Frequent Issues with Regular Reverse Osmosis Systems

In traditional RO systems, water leaks can happen sometimes when there is a tank nearby, so it needs to be closely watched and serviced. To make sure the system keeps running, fixing these leaks might take troubleshooting and, in some cases, getting help from a professional. Also, people who try to do it themselves may find it hard to change the water filters in old-fashioned ones.
People who choose traditional RO systems with tanks should be aware of the issues that can come up with water leaks and replacing the filters. If you want to clean your water in less time and with less stress, you might want to look into different ways to do it or for styles that are easy to use. In this case, Waterdrop tankless reverse osmosis systems might be a better choice.
traditional reverse osmosis system

What to Check for in a Water Filter with Reverse Osmosis

When choosing the best RO water filter for your home, you need to think about the parts that will make sure the water is as pure as possible without adding too much complexity.

The capacity

Another important factor is how much the RO system can produce. Different of these methods can make different amounts of clean water. Your home’s water use habits should help you decide what size tank to get. When deciding whether a system that can produce a few gallons per day or a larger volume is better, things like the number of residents and the planned use of the water are important.

Needs for Maintenance

RO systems are not just plug-and-play devices; they need to be set up and their filters need to be changed regularly. It is important to pick a RO system that is easy to set up, especially if you plan to do it yourself. Look at the upkeep that needs to be done and pay special attention to when the filter needs to be replaced. Choose a system with filters that are cheap, easy to change, and easy to get in your area. This helps your RO system last longer by making sure that the maintenance plan goes smoothly and doesn’t cost too much.
a man changing water filters

Size of System

Water filter systems that use reverse osmosis come in different sizes to fit different needs. Whole-house and commercial models are both choices that can filter water for all of a home or business’s water needs. Smaller, portable and point-of-use models filter water for one tap and are usually mounted on a bar or under a sink.

Ability to Filter

The main job of any water filtration system is to get rid of impurities, but RO systems need to do this more than others. It is very important to check how well a RO system removes contaminants and how deep the filters go. To make an informed choice about which system will work best for your water cleaning needs, you need to know what kinds of contaminants it can get rid of.
Take a close look at the filter’s capacity, filtration ability, and upkeep needs to find the best reverse osmosis water filter for your home. This will help you make sure that your family always has access to clean, pure drinking water.