Total PFAS
Tested by an independent laboratory: ISO/IEC 17025PFAS can build up in the body over time and have been linked to hormone, immune and reproductive problems.
Avg. Reduction %
99%
Puure 3.0 Under-Sink Filter Supply
Purer, great-tasting water from your tap. This cartridge fits the Puure® 3.0 Under-Sink System and reduces 200+ contaminants, minerals preserved.
2-Year Warranty
Ships in 4 – 6 Days
The Puure® 3.0 under-sink cartridge uses an advanced multi-barrier filtration system with 6 engineered layers, each targeting different contaminants.
It reduces over 200 contaminants including chlorine, PFAS, microplastics, pesticides, heavy metals, residual pharmaceuticals, and excess fluoride, while preserving essential minerals like calcium, magnesium and potassium.
✔ NSF-42 certified components
✔ Independently tested by accredited laboratories
✔ Each cartridge lasts ~6 months (~5,000 litres)
It takes about 2 minutes, no tools needed.
Turn off the cold water valve under the sink, unscrew the old cartridge from the housing, screw in the new one, turn the water back on and let it run for 30 seconds. That's it.
Step-by-step instructions included with every cartridge.
This cartridge is designed for the Puure® 3.0 Under-Sink System (Classic and Inox models). The tap-mounted Puure® 3.0 system uses a different cartridge.
In the press
"Puure® has introduced a new, innovative approach to cleaner drinking water, as households across Europe rethink how they consume and filter water at home."
Jan 2026"An advanced filtration technology designed to tackle PFAS, pesticides and tap water contaminants, reducing over 200 directly at the tap."
Jan 2026"A stainless steel tap-mounted filter designed to replace traditional plastic jugs, pioneering a new standard in home water filtration."
Jan 2026
Puure 3.0 Under-Sink Filter Supply
Sale price
£54.90
Rigorously Tested
Lead
Tested by an independent laboratory: ISO/IEC 17025Lead can damage the brain and nervous system, especially in children. No level of exposure is considered completely safe.
Avg. Reduction %
99.9%
Microplastics
Tested by an independent laboratory: ISO/IEC 17025Microplastics are increasingly found in tap water. They now show up in human blood, placentas and brain tissue.
Avg. Reduction %
99.9%
Pesticides
Tested by an independent laboratory: ISO/IEC 17025Pesticides used in agriculture can make their way into drinking water. Long-term exposure to certain pesticides may affect hormones and overall health.
Avg. Reduction %
99%
5,000L
filtered per cartridge
That's 6 months of pure water from your tap
£0.008
per litre
Up to 20 times cheaper than bottled water
3,000+
plastic bottles avoided
With every cartridge, nothing to carry, nothing to throw away
10sec
to fill a full jug
Full flow, straight from the tap
What's inside our cartridges?
Nature filters water through layers. So do we
Six layers, crossed in order, each with a precise role.
-
Reduces
Non-Woven Fiber
99%Reduction- Sand
- Rust
- Sediment
- Visible Particles
-
Reduces
Coconut Shell Carbon
98–99%Reduction- Chlorine
- Taste
- Odours
- Organic Chemicals
- PFAS
- VOCs
-
Reduces
KDF Media
95–99%Reduction- Lead
- Heavy Metals
- Microorganisms
-
Reduces
PFAS Media
Up to 99%Reduction- PFAS
- PFOA
- PFOS
-
Reduces
Heavy Metal Media
95–99%Reduction- Lead
- Mercury
- Cadmium
- Heavy Metals
-
Reduces
Fluoride Media
99.9%Reduction- Fluoride
Cartridge components certified NSF/ANSI 42 (materials) · formulated for European tap water · about 3 months per cartridge
See the test report
Used to disinfect water at treatment plants, chlorine is what gives tap water its chemical taste and smell. But the real concern is what it creates, trihalomethanes (THMs), byproducts linked to increased bladder cancer risk and reproductive complications with prolonged exposure. Puure reduces up to 98–99% of chlorine and its byproducts directly at the tap.
Per- and polyfluoroalkyl substances don’t break down, in nature or in your body. They accumulate over time and have been linked to thyroid disruption, immune system weakening, and increased cancer risk. Found in tap water across Europe and detected in the majority of tested water supplies. Puure reduces PFAS by up to 99%.
Found in both bottled and tap water. Particles under 20 microns can cross the intestinal barrier and enter the bloodstream, linked to inflammation, oxidative stress, and hormonal disruption. No regulatory limit currently exists.Puure’s six-barrier filtration reduces microplastics: 99.9% measured by an independent laboratory on the Nano cartridge.
Pesticide residues, some from products banned years ago, still persist in groundwater and surface water sources. Long-term exposure to compounds like chlorothalonil metabolites has been linked to kidney damage and carcinogenic effects. Puure’s multi-barrier system targets these residues directly at the tap.
Lead from aging pipes affects cognitive development and kidney function. Mercury and cadmium accumulate in the body over time, impacting the nervous system and organs. Even at low concentrations, chronic exposure poses serious health risks. Puure reduces heavy metals by 95–99%.
Aging infrastructure means particles of rust, sand, and sediment can travel from treatment plants to your tap. These impurities affect water clarity, taste, and can carry other contaminants. Puure’s mechanical pre-filtration captures 99% of sediments and rust particles.
Volatile organic compounds, including benzene, toluene, and industrial solvents, can enter water supplies through agricultural runoff, industrial discharge, or aging pipes. Long-term exposure is associated with liver and kidney damage. Puure reduces VOCs by 60–80%.
Trace amounts of antibiotics, hormones, and anti-inflammatory drugs have been detected in tap water across Europe. Wastewater treatment plants weren’t designed to filter these compounds completely. Puure’s activated carbon and multi-barrier system helps reduce pharmaceutical residues from your drinking water.
Independently tested & certified.
NSF Test ReportMeasurlabs Lab Test ReportLead-Free Compliance ReportREACH SVHC Test ReportREACH Certificate of Conformity
Try Puure todayFrequently Asked Questions
How often should I replace my cartridge?
Each Puure® Under-Sink Cartridge lasts approximately 6 months (or ~5,000 litres) for a typical household. With a subscription, your replacement is delivered automatically, so you never run out.
Is this compatible with my Puure® system?
This cartridge is designed for the Puure® 3.0 Under-Sink System (Classic and Inox models). The tap-mounted Puure® 3.0 system uses a different cartridge.
How do I replace the cartridge?
It takes about 2 minutes, no tools needed. Turn off the cold water valve, unscrew the old cartridge, screw in the new one, turn the water back on and flush for 30 seconds. Instructions included with every cartridge.
What does it filter?
The cartridge reduces over 200 contaminants including chlorine, PFAS (forever chemicals), microplastics, pesticides, heavy metals (lead, mercury, cadmium), residual pharmaceuticals, sediments, excess fluoride and hydrocarbons, while preserving essential minerals.
Can I pause or cancel my subscription?
Yes, anytime, in 1 click from your account. No commitment, no minimum. You can also modify your delivery frequency or skip a delivery.
