RO Membranes & Filters

RO Membranes &  Filters

Reverse Osmosis is the most efficient way to purify your drinking water. If you want to remove a range of contaminants from your everyday water, Reverse Osmosis filters can prevent things like bacteria, pesticides, microplastics, microfibers, fluoride and metals (amongst others) from polluting your water supply. It is, without question, the easiest and best solution to enjoy great-tasting, healthy water.

As a well-respected supplier of water filtration products here at Direct Water Filters, we have created a range of Reverse Osmosis water filtration systems that offer the ultimate in water purification. Easy to install, our products will offer you the peace the mind that you can enjoy your water supply without any undue worries about its ongoing quality – the same, high-quality maintained on a constant basis.

What Are Reverse Osmosis Filters/How Do They Work?



Reverse osmosis is a method of purifying water by pushing it through a semi-permeable membrane. The membrane allows pure water molecules through it, whilst impurities are flushed away. By using Reverse Osmosis filters, it is possible to remove all suspended solids, up to 98% of dissolved solids and virtually all bacteria, pesticides and viruses.

At the heart of any reverse osmosis system is the membrane; water is forced under pressure through the membrane to a storage tank and the waste by-product goes to drain. In addition to the membrane reverse osmosis unit also incorporates pre-filters and post-filters. Reverse osmosis systems are compact enough to be installed under most kitchen sinks.

However, the units do require a minimum water pressure of 2.7 bar/40psi - so you must have your home's water pressure assessed before purchasing the unit. Small pumps, specially designed with reverse osmosis systems in mind, are available if your water pressure requires boosting.

Why Choose A Reverse Osmosis System?

Better-tasting water.

Without chemicals in your drinking water, it will naturally taste better – Reverse Osmosis water is usually found to be far purer than water that has come directly from the tap. Fresh water is far more refreshing and satisfying.

No Contaminants.

As Reverse Osmosis filters are primarily used to remove particles and other impurities from water, no contaminants will emanate your water supply. A number of parasites will also be filtered from the water, providing protection against illness – if your water suffers from any type of harmful contaminants, a Reverse Osmosis system will be ideal to purify the water.

Low-Energy Usage.

The amount of energy used by Reverse Osmosis will be relatively low when compared to other water filtration systems. This ensures a productive, economic system that is ideal if you need to use as little energy as possible.

Saves Space and Is Expandable.

Depending on where you’d like to place it, procuring a Reverse Osmosis system can help to save space (when compared to other filters) and can easily to be expanded to cater for a larger volume of water.

Easy-to-Maintain.

Requiring maintenance twice-a-year, Reverse Osmosis water filters are easy to take care of – the filter is straightforward to remove and replace, making the job less complex and time-consuming.

Different Purification Levels.

There are 7 different stages of Reverse Osmosis, with each one getting increasingly more intensive. You can select how many stages you want and customise your choice to suit your needs. As an example of how they work – the first stage will remove particles like dust and silt. The next stage will be a carbon filter that removes bad tastes, caused by chlorine and other chemicals. The water will continue to be pushed through the filter to remove the remaining impurities – water freshness, alkalisation and UV filters (that kill bacteria and viruses) being key contributors.

Money-Saving.

Aside from contributing to lower-energy usage, Reverse Osmosis filters can help you to save money simply by cutting out the need to purchase bottled water in your quest for a healthier drink. All you’ll need is a reusable bottle and fill it up as and when – helping to cut down on the number of plastics you use/have to recycle too.

So, if you would like to…

  • Improve the taste, odour, and appearance of your water
  • Have no more limescale in your kettle or coffee machine
  • Improve the taste and texture of vegetables, soup, and sauces
  • Have an unlimited supply of pure water

…why not take a look around our range of Reverse Osmosis water filters and accessories? Each of the items here have been selected for their high-performance qualities and ease-of-installation – able to be fitted by any newcomer or veteran of water filters.

Need To Learn More About Our Water Filtration Systems? Get In Touch!

Feel free to continue to browse our selection of Reverse Osmosis filters and accessories – if you have any questions, our expert team are on hand to help. Give them a call today on 01604 947 839 or send an e-mail to sales@directwaterfilters.co.uk and they’ll get in touch as soon as possible.

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Water Remineraliser for Reverse Osmosis systems
AquaKlenze  mineraliser in-line cartridge fits most 1/4” water lines. Water passing throu..
£9.95
3 Stage Reverse Osmosis Filter Pack
Suitable for most Aquatic  Reverse Osmosis Water Filter systems our 3 Stage Reverse Osmosis Rep..
£14.95
4 Stage Reverse Osmosis Filter Pack
Suitable for most standard  Reverse Osmosis Water Filter systems our 4 Stage Reverse Osmosis Re..
£16.80
Alkalizing  Inline Filter Cartridge
ALKALIZING, IONIZING AND MINERALISING INLINE FILTER CARTRIDGE.   The newest on the market..
£11.95
Reverse Osmosis Pre Filter Pack
Suitable for most standard  Reverse Osmosis Water Filter Systems Reverse Osmosis Replacement Fi..
£18.00
5 Stage Reverse Osmosis Filter Pack
Suitable for most standard  Reverse Osmosis Water Filter systems 5 Stage Reverse Osmosis Replac..
£24.95
6 Stage Reverse Osmosis Filter Pack
Suitable for most standard  Reverse Osmosis Water Filter systems 6 Stage Reverse Osmosis R..
£38.95
75 GPD  TLC RO Membrane
75 GPD Reverse Osmosis Membrane TFC 1812 - 75GPD These R.O. TFC (thin film composite) membranes..
£16.80
100 GPD  TLC RO Membrane
100 GPD Reverse Osmosis Membrane TFC 2012 - 100GPD These R.O. TFC (thin film composite) membran..
£19.20
180 GPD  TLC RO Membrane
180 GPD Reverse Osmosis Membrane TFC 2012 - 180GPD These R.O. TFC (thin film composite) membran..
£32.95
1812/2012 RO Membrane Housing & Wrench
1812/2012 RO Membrane Housing¼" Quick Connect Fitting Fits Standard Tubing Used on Most RO Systemsco..
£12.95
200 GPD  TLC RO Membrane
200 GPD Reverse Osmosis Membrane TFC 2012 - 200GPD These R.O. TFC (thin film composite) membran..
£32.95
3013 RO Membrane Housing for 400 GPD Reverse Osmosis
3013 RO Membrane Housing for 400 GPD Reverse Osmosis ..
£18.00
3213 RO Membrane Housing for 800 GPD Reverse Osmosis
3213 RO Membrane Housing for 800 GPD Reverse Osmosis ..
£22.00
400 GPD Reverse Osmosis RO Membrane for 3013 Housing
400 GPD Reverse Osmosis Membrane TFC 3013 - 400GPD These R.O. TFC (thin film composite) membran..
£55.00
4040 RO Membrane for 4"x 40" Reverse Osmosis Membrane Housing
4″ x 40″ RO Membranes are specifically designed for the production of pure water for a huge range of..
£145.00
4040 Stainless Steel Reverse Osmosis Membrane Housing
4″ x 40″ RO stainless membrane housing are specifically designed for the production of pure water fo..
£105.00
800 GPD Reverse Osmosis RO Membrane for 3213 Housing
800 GPD Reverse Osmosis Membrane TFC 3213 - 800GPD These R.O. TFC (thin film composite) membran..
£79.50
DOW FilmTec™ BW30-4040 Brackish Water
DOW FilmTec™ BW30-4040 Brackish WaterFilmTec™ BW30-4040 Elements are an industry standard for r..
£269.95
 DI Mixed Bed Resin Filter Cartridge
Virgin Mixed Bed Di Resin for Window Cleaning/ aquariums/ Car ValetingRefillable housing..
£7.95
 DI Mixed Bed Resin Filter Cartridge and Housing
10" Reverse Osmosis DI Filter - Including Housing, Cartridge, DI Resin, DI Resin Refillable Car..
£24.95
25ltr DI Mixed Bed Resin
Virgin Mixed Bed Di Resin for Window Cleaning/ aquariums/ Car ValetingRefillable housing..
£95.00
DI Mixed Bed Resin Inline Filter Cartridge
Inline filter housing withVirgin Mixed Bed Di Resin for Window Cleaning/aquariums/car Valeting..
£17.45
DI Mixed Bed Resin Vessel
Vessel tank available empty or with DI ResinMixed Bed Di Resin for Window Cleaning/aquariums/car Val..
£69.75
In-Line De-ionisation Water Filter cartridge
Aqua Klenze Di-RO In-Line De-ionisation Water Filter cartridge For Reverse Osmosis Systems 1/4" NPT..
£11.95
Zeolite (Clinoptilolite) Filter Cartridge
HIGH-GRADE FILTER MEDIAZeolite (Clinoptilolite) is a specially selected mineral for use in water fil..
£9.95
3 Pack 1 Micron Melt-blown Polypropylene Sediment Filter
The construction of this pure polypropylene, surfactant-free depth filter ensures low pressure drops..
£10.45
3 Pack 5 Micron Melt-blown Polypropylene Sediment Filter
The construction of this pure polypropylene, surfactant-free depth filter ensures low pressure drops..
£10.45
Carbon Block Filter For Reverse Osmosis Systems x3
These replacement carbon block water Filter cartridges, will Fit All Standard 2.5 x 10 Inch Filter H..
£13.95
Granular (GAC) Carbon Filter Cartridge 3 Pack
Compatible with all 10" imperial housing inc the LIFF NP1 and NDL2 Features and Benefits: Cartr..
£23.95
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