Best PFAS Water Filters UK 2026
PFAS — known as "forever chemicals" — have been detected in UK water supplies across the country. These chemicals don’t break down in the environment or in your body, and they’ve been linked to serious health concerns. The good news: the right water filter can remove them. We’ve reviewed the best PFAS water filters available in the UK, all NSF-certified and proven to reduce PFAS in drinking water.
PFAS (per- and polyfluoroalkyl substances) are a group of over 12,000 synthetic chemicals used in non-stick pans, waterproof clothing, firefighting foam and food packaging. They’re called "forever chemicals" because they don’t break down — they accumulate in the environment, in water supplies, and in your body over time.
Top picks at a glance
| Type | Product | PFAS Removal | Price Range |
|---|---|---|---|
| Ultrafiltration | Waterdrop 10UB-UF | NSF-certified | ~£130 |
| Reverse Osmosis | Waterdrop G3P600 | 99.99% removal | ~£400 |
| Premium RO | Waterdrop X16 | 99.99% removal | ~£1,499 |
The picks
Waterdrop 10UB-UF Ultra Filtration System
Best Value PFAS Filter- •Price: ~£130
- •0.01 micron ultrafiltration membrane — reduces PFAS, lead, chlorine, cysts
- •Under-sink, direct connect to existing faucet
- •NSF-certified
- •No wastewater
If PFAS removal is your priority but you don’t want the cost or wastewater of reverse osmosis, the 10UB-UF is the best option. The 0.01 micron membrane is fine enough to catch PFAS particles and lead, without the wastewater that RO produces. It’s NSF-certified, fits UK plumbing (3/8" and 1/2"), and connects directly to your existing faucet — no separate tap needed. At ~£130, it’s the most affordable NSF-certified PFAS filter available in the UK.
Get the Waterdrop 10UB-UF PFAS Filter →Waterdrop G3P600 Reverse Osmosis System
Best PFAS Removal- •Price: ~£399.99 (was £549.98)
- •Reverse osmosis removes up to 99.99% of PFAS
- •8-stage filtration — also removes lead, arsenic, chlorine, fluoride, microplastics
- •Tankless, dedicated faucet included
- •Capacity: 600 GPD
- •NSF 58 certified (RO standard)
For the most thorough PFAS removal, reverse osmosis is the gold standard. The G3P600 forces water through a semi-permeable membrane at molecular level — PFAS molecules are too large to pass through, so they’re flushed away. The result is water with up to 99.99% of PFAS removed. The tankless design means no storage tank, and the 600 GPD capacity is more than enough for a family. NSF 58 certified (the reverse osmosis standard).
Get the Waterdrop G3P600 RO System →Waterdrop X16 Reverse Osmosis System
Best Premium PFAS Filter- •Price: ~£1,499
- •16-stage reverse osmosis — comprehensive PFAS and contaminant removal
- •Tankless, dedicated faucet
- •Capacity: 1600 GPD — large households
- •Highest flow rate in the Waterdrop range
The X16 is for people who want the absolute maximum protection. 16-stage filtration means PFAS, pharmaceuticals, microplastics and dissolved solids are all removed. The 1600 GPD capacity handles the largest households. If you live in an area with known PFAS contamination and want complete peace of mind, this is the system.
Explore the Waterdrop X16 RO System →Buying guide — how to choose
Health concerns linked to PFAS exposure
PFAS exposure has been linked to increased cholesterol levels, reduced immune system response, changes in liver function, increased risk of certain cancers, and developmental effects in children.
Which filters remove PFAS?
Reverse osmosis: YES — removes PFAS at molecular level (NSF 58 certified).
Ultrafiltration: YES — 0.01 micron membrane catches PFAS (NSF certified).
Carbon filters: PARTIAL — activated carbon reduces some PFAS but not all types.
Filter jugs (Brita etc.): NO — standard jug filters are not certified for PFAS removal.
PFAS in UK water: what you need to know
PFAS contamination in UK water has been making headlines. A 2023 study by the Royal Society of Chemistry found PFAS in drinking water samples across England and Wales. While UK water companies are required to meet safety standards, the standards themselves are debated — some PFAS compounds have no UK limit at all.
UK areas with known PFAS concerns include areas near industrial sites and airports (firefighting foam), areas near landfill sites, and some agricultural areas (contaminated sludge used as fertiliser). The most reliable way to know if your water contains PFAS is to contact your water company and ask for their latest water quality report, or use an independent testing service.