Finerfilters stocks reverse osmosis (RO) filtration systems for use under the sink. These systems are designed to deliver highly purified water for drinking and cooking.

Under-sink RO systems are among the most effective methods of water purification, capable of removing up to 99% of contaminants.

These systems target a wide range of impurities, including chlorine, bacteria, heavy metals, and more, to ensure clean, fresh-tasting water.

Unlike traditional RO systems, when you buy these compact and easy to install systems, you get pure water directly from the tap.

Using Reverse Osmosis Under Sink Systems

Using reverse osmosis under-sink systems is a quick and reliable way of achieving clean water.

These systems operate by forcing water under pressure through a series of progressively finer filters, passing through a semi-permeable membrane that traps contaminants and other impurities.

With the capacity to produce up to 190 litres of purified water daily, these systems ensure a consistent supply for your household or property.

Our Under Sink RO Systems

Our under sink reverse osmosis (RO) systems are available in various stages:

• The Four-Stage RO System effectively removes taste and odour, pesticides and VOCs, making it ideal for softening water in hard water areas.
• The Five-Stage RO System builds on this by incorporating an additional GAC carbon pre-filter to enhance dechlorination.
• The Six-Stage RO System utilises 6-in-2 smart filtration, delivering high-purity, softened water with an alkalinity range of 7.8–8 pH.

Each system effectively filters out harmful contaminants, with your choice depending on the level of additional filtration you require.

Buy Under Sink RO Systems At Finerfilters

We have fast delivery available across mainland UK and international shipping options. Our dedicated post-sale support team is here to assist with any questions you may have about choosing, installing, or maintaining your system.

Just contact us or you can also check in on our regularly updated guide section, which is packed with useful content to help you get the most out of your filtration system.