An image of a girl splashing her dad while he fits a Doulton water filter

Undercounter / Under Sink Water Filter Systems

Explore our collection of under-sink water filter systems. Discretely nestled beneath your kitchen sink, our under-sink systems are a practical way to enhance your drinking water at home. Whether you’re working on a kitchen renovation or breaking the habit of buying bottled water, the under-sink range from Doulton is effortless to install and maintain.

An imange of a man getting a glass of water using his Doulton water flter

What is an under sink water filter?

Tucked away under the sink, an undercounter, or under sink water filtration system is a discreet and practical option to enhance your drinking water at home. Removing up to 99.99% of contaminants, these systems are plumbed into the mains. Each time you use your filter tap, the water is diverted through the undercounter system to bring you consistently fresh, filtered water.

Water filter systems from Doulton go through a rigorous testing process, in line with NSF standards. Our team of experts, based in our Staffordshire manufacturing facilities, are committed to maintaining the highest quality and innovations to bring exceptional quality drinking water into your home. Each system reduces up to 99.99% of common contaminants, including Chlorine, Microplastics, Heavy Metals and Pharmaceuticals – all whilst retaining the essential minerals that benefit your health. You may prefer to try a Countertop Water Filter System or a Portable Water Filter option before they take the plunge into plumbing with an undercounter option. And of course, if you are unsure, then our expert team are always on hand to help either by email, phone or live chat.

Why Choose a Doulton Under Sink Water Filter?

Doulton have been pioneers of water filtration since 1826. From the original gravity systems designs, through to the advanced water filtration systems you can enjoy from our range today, they all feature the Doulton ceramic filter. The Doulton under sink water filter systems are meticulously designed for seamless integration into your home. Sometimes referred to as an undercounter system, the range from Doulton ensures a consistent supply of clean, great-tasting water directly from your tap, all while maintaining your kitchen’s aesthetics and maximising space. All of our undercounter filtration systems come with a free installation kit, and you can choose which type of filter suits your specific needs the best. You can also fit them any time you choose. So, whether you’re having a full kitchen renovation, or looking to enhance the quality of water with the set up you already have, there is no better time to look at the best under sink water filter system to suit your home.

Key Benefits of Doulton Under Sink Water Filters:

1. Space-Saving Design: Neatly concealed under the sink, these filters optimise space without sacrificing performance, efficiently reducing contaminants.

2. Consistent Clean Water: Experience the convenience of filtered water at your fingertips, ideal for drinking, cooking, and rinsing produce.

3. Durable and Low-Maintenance: Built to last, our undercounter systems are designed for durability and require minimal upkeep, thanks to long-lasting filter cartridges.

4. Eco-Conscious Choice: Help reduce plastic waste by decreasing the reliance on bottled water.

5. UK Customer Service Team: with dedicated experts on hand to help with any questions.

6. Sign up for our newsletter, and you can receive a 10% discount on your first order.

Frequently Asked Questions About Under Sink Water Filters

What's the difference between an undercounter and under sink water filter?

Essentially nothing! Undercounter was the original name given to this product when it was first released. As we know, language changes and nuances in wording can evolve. Both an undercounter water filter system and under sink water filter system are installed in the same place, and work in the same way. They both provide filtered water to your tap and offer a space-saving, low-maintenance way to enjoy cleaner water at home.

How to install an under sink water filter?

All of the Doulton under sink water filtration systems come with instructions that allow you to either install the system yourself, or enlist the assistance of a professional to set up. If installing yourself, preparation is key and you will need to start with ensuring that you know where your stop tap is, whilst also having the right tools to do the job. For the installation process, you will need some commonly available DIY tools, such as a drill, adjustable wrench and plumbers' tape. The process of installing an under sink water filter system involves steps such as turning off your water supply, disconnecting the cold water line, installing the adapter valve and then mounting the filter housing. Once these steps are completed you should them be able to connecting tubing between the water supply, filter and your tap. Of course, with any issues or questions our dedicated UK customer service team are always on hand to help.

How often do I need to replace the filter cartridges?

For Doulton undercounter and under sink water filter systems, our guidelines are that you should replace your ceramic filters after 600USG/2300L or after around 6 months (whichever comes first). It is important to ensure that you change the filters as needed to avoid any issues with your filtered water quality. Replacing your filter is easily done by yourself by simply unscrewing the filter housing and changing the internal filter cartridge.

Undercounter / Under Sink Water Filter Systems

Frequently Asked Questions Continued

Do you offer a subscription service for my water filters?

We do offer a subscription service, that you can take advantage off via our website. Simply head to https://doulton.com/pages/filter-subscription to set this up! You can effortlessly take the hassle out of buying your replacement filters, alongside enjoying a discount on your subscription order. This not only saves you time, but also money! If you’re unsure which water filter you need, don’t worry – our customer service team are always happy to help and assist you in finding the right filter for your needs and system.

Will an under sink water filter remove fluoride?

Some ceramic water filters can help in the reduction of fluoride in your water supply. For example. The Doulton® Fluoride Reduction Cartridge (9B04) for DUO systems, that is used ahead of our ceramic water filter cartridges is designed to reduce the levels of fluoride in your water supply. Whilst water fluoridation is widely considered as safe in the UK, some may raise concerns – and we cover this subject in our blog article here. Our cartridge is designed to provide an option for those who would prefer to reduce the level of fluoride in their tap water at home and is use for use in some of our under sink water filter systems.

Do Doulton under sink filter systems come with a
warranty?

Yes! All of our filter systems have a five yea extended
warranty for additional peace of mind. To activate your warranty, you will simply need to provide your product details, proof of purchase and contact information via our online form. You will then activate your extended warranty protection that enhances your statutory consumer rights, at no added cost. You can find further detail about this by following this link: https://doulton.com/pages/warranty

Do Doulton filters have any certification to prove their
effectiveness?

Accredited by BS EN ISO 9001 international quality
standards, we also hold the coveted NSF® and WRAS certification. You can find
further details of our NSF certifications by visiting
their website.

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Undercounter / Under Sink Water Filter Systems

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