The Best Water Filtration Systems in the UK
Clean water isn’t just essential for drinking – it’s the foundation of a healthier home. Whether you’re tackling limescale buildup, improving the taste of tap water, or protecting your appliances, investing in a home water filtration system is one of the smartest moves you can make.
In this guide, we’ll explore the best water filtration systems for homes that we British folk can buy. These systems are ideal for cleaning, cooking, and drinking, and they’re all extremely well-reviewed, by not just our cleaning team but loads of other users, too.
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Why You Need a Water Filtration System
A water filter for tap water removes impurities like chlorine, lead, heavy metals, and microplastics. Whether you’re using it for drinking water, cleaning fruits and vegetables, or filling your kettle, a home drinking water filtration system ensures every drop is safe and refreshing.
Benefits of a water filtration system:
- Improves the taste and smell of tap water
- Reduces limescale and protects appliances
- Removes harmful contaminants
- Saves money on bottled water
- Eco-friendly and sustainable
Top 5 Water Filtration Systems
Ok, let’s get into the good stuff.
Below are five top-rated water filtration systems that stand out for performance, durability, and user satisfaction. Let’s explore what makes each option unique and which one might be the best fit for your household needs…
1. Overall Best Water Filtration System: Waterdrop 15UB Under Sink Water Filter System
The Waterdrop 15UB is a compact and efficient under-sink water filtration system designed for households seeking cleaner tap water without sacrificing flow rate. With a 60,000-litre capacity, it’s ideal for families who want a long-lasting solution for drinking, cooking, and cleaning.
The system connects directly to your cold water line and includes a dedicated brushed nickel faucet for filtered water. It reduces chlorine, lead, PFAS, and other contaminants while preserving beneficial minerals.
Installation is straightforward, and the slim design fits neatly under most sinks. This water filter system is a great choice for those looking for a reliable home water filter that improves taste and safety.
Pros:
- High-capacity filtration for long-term use
- Easy installation with a dedicated faucet
- Certified to NSF/ANSI 42 standards
Cons:
- Does not reduce total dissolved solids (TDS)
- Requires under-sink space for setup
I’ve written a more comprehensive review of the Waterdrop 15UB if you want to read more about this system.
2. Best for Ultra-Pure Drinking Water: iSpring RCC7AK 6-Stage Reverse Osmosis System
The iSpring RCC7AK is a premium reverse osmosis water filtration system that delivers ultra-pure drinking water through a six-stage process. It removes up to 99% of over 1,000 contaminants, including fluoride, arsenic, lead, and chlorine. What sets it apart is the alkaline remineralisation filter, which restores healthy minerals like calcium and magnesium to improve taste and pH balance.
This system is ideal for households concerned about water quality and looking for a comprehensive solution. It fits under the sink and includes a sleek faucet for dispensing purified water. The iSpring RCC7AK is a top-tier choice for home drinking water filtration.
Pros:
- Advanced filtration with reverse osmosis and remineralisation
- NSF certified for safety and performance
- Excellent for improving taste and reducing harmful substances
Cons:
- Requires professional installation for optimal setup
- Slower filtration speed compared to simpler systems
3. Best for Families & Shared Spaces: BRITA Flow XXL Water Filter Tank (8.2L)
The BRITA Flow XXL is a large-capacity water filter tank designed for families, offices, or anyone needing a steady supply of filtered water. It holds up to 8.2 litres and fits neatly in the fridge or on a countertop. Using BRITA’s MAXTRA PRO cartridges reduces chlorine, limescale, and heavy metals, making it ideal for both drinking and cooking.
The dispenser tap makes it easy to fill glasses or kettles without lifting the tank. This tap water filter is a convenient and eco-friendly alternative to bottled water, helping reduce plastic waste while improving water quality. It’s a great entry-level option.
Pros:
- No plumbing required
- Large capacity for busy households
- Easy-to-use dispenser tap
Cons:
- Monthly cartridge replacement is needed
- Does not remove bacteria or viruses
4. Best for Lead, Chlorine & Fluoride Removal: Frizzlife SK99-NEW Under Sink Water Filter System
The Frizzlife SK99-NEW is a direct-connect under-sink water filter system that offers high-performance filtration without the need for a separate faucet. It uses a 0.5-micron carbon block filter to remove 99.99% of lead, chlorine, chloramine, fluoride, and other contaminants.
Certified to NSF/ANSI 53 and 42 standards, it’s a reliable choice for improving tap water taste and safety. The quick-change filter design makes maintenance simple, and the compact unit fits easily under most sinks. This home water filtration system is ideal for renters or homeowners who want powerful filtration with minimal installation hassle.
Pros:
- Direct connection to the existing faucet
- High-efficiency carbon block filtration
- Quick-change filters for easy maintenance
Cons:
- Does not reduce TDS levels
- May not be compatible with all plumbing setups
5. Best No Plumbing Option: British Berkefeld Gravity Water Filter System (6L)
The British Berkefeld Gravity Water Filter System is a portable, stainless steel unit that uses ceramic filters to purify water without electricity or plumbing. It’s perfect for households, camping, or emergency preparedness. The Ultra Sterasyl cartridges remove bacteria, cysts, chlorine, and heavy metals, delivering clean and great-tasting water.
With a 6-litre capacity, it’s suitable for daily use and offers peace of mind in areas with questionable tap water. This drinking water filter system is trusted by aid organisations and is, of course, a sustainable alternative to bottled water. It’s one of the most versatile household water purification systems available in the UK.
Pros:
- No power or plumbing required
- Durable stainless steel construction
- Effective ceramic filtration for multiple contaminants
Cons:
- Slower filtration rate than pressurised systems
- Requires manual refilling and cleaning
Why Trust Us?
We’re a UK-based professional cleaning team with years of hands-on experience in homes of all shapes and sizes. From deep cleans in busy family kitchens to quick refreshes in rental flats, we’ve used more cleaning products and household tools than we can count. Some are brilliant. Others don’t live up to the hype.
This blog was created to share what actually works. Every recommendation is based on practical use, customer feedback, and what holds up in real homes. If a product doesn’t save time, improve results, or make life easier, it doesn’t make the cut.
We focus on tools that perform under pressure, not just ones that look good on the shelf. We only bring you the best, and that’s a promise 🙂
Final Thoughts on the Best Water Filtration Systems in the UK
The best water filtration system for your home depends on your needs – whether it’s high-capacity under-sink systems, portable gravity filters, or fridge-friendly dispensers.
From drinking water filter systems to tap water filters, investing in a home water filter is a smart step toward better health and sustainability
