Best Water Filter Jug UK (2026): Which Jugs Cut Lead, PFAS and Limescale?

Picks at a glance

Prices checked 13 October 2026

Prices checked in October 2026 on brand and UK retailer pages. "Brand claim only" means the UK page names no independent certification for the jug or cartridge.

What a jug can and can't remove

Most jugs use a cartridge of activated carbon and ion-exchange resin. Carbon grabs chlorine and many taste and smell compounds. Resin swaps calcium and some metals for other ions, which cuts limescale for a while.

What a good jug can do:

• Reduce chlorine taste and smell. This is the main, reliable benefit.
• Reduce limescale in kettles, especially with a hard-water cartridge.
• Reduce lead and copper, if it is certified for them (NSF/ANSI 53 for lead).
• Reduce PFOA and PFOS, if it is certified for them.

What a jug can't do:

• Remove bacteria or viruses. Jugs are not designed to make unsafe water drinkable.
• Remove nitrate or most fluoride (ZeroWater is an exception for fluoride, by its own claim).
• Fix lead pipes. The DWI says the long-term answer is replacing the pipes (DWI).
• Keep working forever. Once a cartridge is spent, it stops reducing contaminants.

The DWI points out that UK tap water already meets legal standards, so a jug is a choice about taste and extra reassurance, not a health requirement (DWI). In the Duke and NC State home study, jugs gave inconsistent PFAS results compared with under-sink filters (Herkert et al. 2020).

How we chose

We started with jugs sold in pounds by UK brands and retailers, including the jugs already on our site, and checked each in October 2026. For each one we looked for:

• NSF/ANSI 42: chlorine, taste and odour.
• NSF/ANSI 53: health contaminants such as lead and PFOA/PFOS.
• NSF/ANSI 401: emerging compounds such as some medicines and pesticides.

Certification can come from NSF, IAPMO or WQA, and is listed per model in public databases such as NSF's listings. Where a UK page names a test or a standard but no certifier or listing, we call it "brand claim only". We also compared cartridge cost per year, capacity, materials, hard-water options and whether the jug fits a fridge door.

Reviews

ZeroWater 5-Stage Water Filter Jug: best for lead and PFAS

ZeroWater's five-stage cartridge is the only jug filter we found that the brand says is IAPMO certified to reduce lead and PFOA/PFOS, with claimed reductions of 99.7% lead and 95% PFOA/PFOS. It also strips almost all dissolved solids, and comes with a meter so you can see when the cartridge is spent. It costs £45 at Argos. Caveat: the UK pages do not show the listing number, so check the current listing yourself. Cartridges (about £19.99) run out much faster in hard water, so the yearly cost is not published and can be high, and the very low-mineral water tastes flat to some people.

ZeroWater 1.7L Jug with TDS Meter: best small jug

The same five-stage cartridge in a slim 1.7 litre jug that fits UK fridge doors, at £30 from Culligan. Caveat: small capacity means more refilling, and the same short cartridge life in hard water applies.

BRITA Marella with MAXTRA PRO: best everyday jug

The default for good reason: cheap, everywhere, and the cartridges are easy to find. The Marella holds 2.4 litres (1.4 litres filtered) and fits fridge doors. BRITA says MAXTRA PRO is independently tested to reduce PFAS, and Belgian consumer group Test-Achats found it removed up to 96% of some PFAS. Cartridges last up to 150 litres or four weeks, so about £76 a year buying six-packs. Caveat: the UK page names no NSF/ANSI standard or certifier, so we treat lead and PFAS claims as brand claims.

BRITA Style with MAXTRA PRO: best for a light indicator

Same cartridge as the Marella, in a 2.4 litre jug with a Smart Light that shows when to change it. It was £23.04 at Argos. Caveat: the lid with the light cannot go in the dishwasher, and certification is the same brand claim as the Marella.

BRITA Glass Jug with MAXTRA PRO: best glass jug from a big brand

A borosilicate glass body, so filtered water sits in glass rather than plastic, with the same MAXTRA PRO cartridge. 2.5 litres total, 1.5 litres filtered. Caveat: the lid, cartridge and indicator are still plastic, it is heavier than plastic jugs, and at 17.4cm wide it can be a tight fit in fridge doors.

Aqua Optima Oria: best value from a known brand

A 2.8 litre slimline jug that fits most fridge doors, £19.99 with three cartridges at Argos. Evolve+ cartridges last a month or 150 litres and cost about £30 to £52 a year depending on pack size, and there is an Evolve+ Advance cartridge for hard water. Caveat: no certification is named; reduction claims for microplastics and heavy metals are the brand's own.

Dunelm Large Filter Jug 2.8L: cheapest jug

At £8, Dunelm's own jug is the cheapest here, and its three-packs of cartridges (£6.40 to £8) fit other oval jugs too. Dunelm claims up to 200 litres per filter, about £26 to £35 a year if changed monthly. Caveat: Dunelm only claims to reduce chlorine and limescale, names no certification, and does not offer a hard-water cartridge.

Phox Wave 2.8L: best refillable cartridge

Phox's refillable cartridge means you replace the granules, not a whole plastic cartridge. The jug costs £39.99 including a three-month refill pack, and each refill lasts 45 days or 200 litres. Its "Clean" refill is recommended for hard water. Caveat: no certification is named, "removes nasties" is not a measurable claim, the alkaline refill adds minerals rather than removing contaminants, and Phox does not publish an easy per-refill price.

Aarke Purifier: best plastic-free design

A glass carafe with a stainless steel cartridge you refill with granules, developed with water treatment firm BWT. Granule bags last up to 120 litres or four weeks, about £74 a year using Pure granules. It costs £100 from Aarke UK and is stocked by John Lewis. Caveat: at 1.18 litres filtered it is small for the price, it is round and tall so it will not sit in a fridge door, and its reduction claims are the brand's own.

Best jug for hard water

Hard water uses up a jug's ion-exchange resin faster, so limescale comes back sooner. Three options stand out:

• BRITA MAXTRA PRO Limescale Expert: a hard-water cartridge that fits BRITA jugs, including the Marella, Style and glass jug.
• Aqua Optima Evolve+ Advance: Aqua Optima's hard-water cartridge for the Oria and Perfect Pour.
• Phox "Clean" refill: Phox's hard-water granules.

If you live in a very hard water area and want lead or PFAS reduction as well, an under-sink system with a limescale stage, such as the Aquaphor Crystal H in our under-sink filter guide, may work out cheaper over time. ZeroWater cartridges reduce hardness completely, but in hard water they can be used up in weeks.

Best glass and plastic-free jugs

No jug we found is completely plastic-free, because lids, seals and most cartridges use plastic or silicone. Two get closest:

• Aarke Purifier: glass carafe and stainless steel cartridge, with BPA-free thermoplastic and silicone in the lid. The most plastic-free design here.
• BRITA Glass Jug: a borosilicate glass body with a plastic lid and the standard MAXTRA PRO plastic cartridge.

Glass does not change how well the filter works. It changes what the filtered water sits in, which some people prefer for taste or to reduce contact with plastic. Phox's refillable cartridge is another way to cut plastic waste.

Cost per litre and per year

Yearly costs assume one cartridge every four weeks (13 a year) for BRITA and Aarke, and monthly for Dunelm and Aqua Optima. Your cost will be lower if you use less than the rated volume each month, but change cartridges on time regardless.

Is there a better option than Brita?

It depends what you want the jug to do:

• For lead and PFAS: ZeroWater, because it is the only jug brand claiming independent certification for both. Or skip jugs and fit a certified under-sink filter.
• For value: Aqua Optima or Dunelm cost less to run than BRITA, though they name no certification.
• For less plastic: Aarke's glass and steel design, or Phox's refillable cartridge.
• For taste and convenience: BRITA MAXTRA PRO remains a sensible default, with cartridges sold almost everywhere and published PFAS testing by a consumer group.

Downsides of filtered water

• Bacteria can grow. Studies have found bacterial counts in jug water can rise above tap water levels, especially in warm conditions or with old cartridges (Briancesco et al. 2020). Keep the jug in the fridge and change cartridges on time.
• Less chlorine, less protection in the jug. Chlorine is there to keep tap water free of germs, so filtered water does not keep as long.
• Lower minerals. ZeroWater and RO strip calcium and magnesium, which some people dislike the taste of.
• Waste and cost. Plastic cartridges add up. BRITA, Phox and Aarke offer recycling or refill schemes.
• False reassurance. A jug is not a fix for lead pipes or private water supplies.

Bottom line

Most UK filter jugs mainly improve taste and cut chlorine and limescale; few are independently certified to reduce lead or PFAS. If lead or PFAS worries you, choose a ZeroWater jug, which the brand says is certified for both, or step up to under-sink reverse osmosis. For everyday taste, a BRITA Marella with MAXTRA PRO is a sensible default, Aqua Optima and Dunelm are cheaper to run, and Aarke is the best choice if you want glass and steel. For every type of filter compared, see our best water filter guide.