Best water filters (UK)
A shortlist — not an endless list. The best choice is the one you’ll actually use and keep replacing filters for.
At a glance
If you want the simplest option, start with a jug. If you’ll use filtered water daily and want convenience, go under‑sink. If you want high capacity without plumbing, choose a countertop gravity filter.
Last updated: January 25, 2026
How to choose (in 60 seconds)
Jug
Best starter option. Great taste improvement and easy to maintain.
Watch-out: filter replacements add up over time.
Under‑sink
Most convenient for daily use. Ideal if you want filtered water from a tap.
Watch-out: check installation space and annual filter costs.
Countertop gravity
High capacity without plumbing. Great for renters or batch filtering.
Watch-out: takes counter space and needs regular cleaning.
Top favourites (shortlist)
Three simple routes, depending on how you live.
Best starter: jug filter
Best valueGreat for renters and small kitchens — easy to start and easy to stick with.
- Fits most fridges
- Replacement filters are the ongoing cost
- Start here if you’re unsure
Best set & forget: under-sink
Best overallMost convenient for daily use. Ideal if you want filtered water from a tap.
- Check installation space
- Budget for annual filter changes
- Great for families
Best no-plumbing: gravity filter
Best forHigh capacity without installing anything. Good for batch filtration and renters.
- Takes counter space
- Plan filter replacements
- Clean regularly
| Type | Best for | Main tradeoff | Check before buying |
|---|---|---|---|
| Jug (fridge) | Renters, smaller kitchens, lighter usage | Ongoing filter replacements | Replacement cost + frequency; fridge fit |
| Under-sink | Daily use + convenience | Needs space/installation | Under-sink space; annual filter cost |
| Gravity countertop | High capacity without plumbing | Counter space + cleaning | Footprint; replacement elements; cleaning routine |
Shortlist (buyer favourites)
These are curated searches so you can compare prices and check replacement filters.
Doulton under‑sink water filter system
Best set & forgetFiltered water from a dedicated tap. Great if you’ll keep up with yearly replacements.
- Best for: families + daily use
- Check installation space under the sink
- Budget for annual filter changes
BRITA Style / Marella jug + MAXTRA filters
Best starter jugEasy, cheap to begin, widely available in the UK.
- Best for: renters + small kitchens
- Fits most fridges
- Replacement filters are the ongoing cost
Aarke Purifier (pitcher)
Best designPremium-feeling jug/pitcher option. Great if you want a “nice enough to live on the counter” piece.
- Best for: aesthetics + everyday sipping
- Check replacement filter pricing
Phox water filter jug
Best eco jugA UK-friendly option often praised for reducing plastic vs constant cartridge swapping.
- Best for: reducing plastic
- Check availability of refills
British Berkefeld gravity filter
Best no‑plumbingLarge capacity without installing anything. Useful for renters or if you want big batch filtration.
- Best for: high capacity
- Takes counter space
- Plan filter replacements
BRITA Flow (large tank)
Best for familiesA bigger “tap-style” tank that stays in the fridge. Great for high throughput.
- Best for: lots of cups a day
- Measure your fridge shelf first
FAQ
Is an under‑sink filter “better” than a jug?
Not automatically. Under‑sink is mainly about convenience. The best filter is the one you’ll maintain.
What’s the hidden cost?
Replacements. Before buying, check filter price + how often you’ll replace it.
Should I worry about “certifications”?
When brands make big claims, credible test reports matter. If claims are vague, treat them as marketing.
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