PureFina 400GPD Undersink Reverse Osmosis Water Filter Black
Additional services for your product
Choose extra services to protect and extend the life of your product.Extended warranty (+ 12 months)
The complaint period is extended by 12 months, during which the customer is entitled to a repair, replacement, or refund in case of a product defect.
- Ready for delivery In stock and ready for you! Order now and enjoy your purchase without delays. In stock and ready for you! Order now and enjoy your purchase without delays.
- Shipping time: 1 - 2 days Receive it sooner than you think. Don’t miss this opportunity, order now! Receive it sooner than you think. Don’t miss this opportunity, order now!
- 14 day cooling off period
Top features
Filters out what shouldn't be in your drinking water: The 5-stage reverse osmosis system removes heavy metals, chlorine, bacteria, nitrates, and microplastics — filtering down to particles smaller than 0.0001 microns for water as clean as premium bottled brands, straight from your tap.
Always know what's in your glass: The built-in TDS sensor measures water quality in real time and shows the reading on the display, giving you instant, ongoing reassurance about the water your household is drinking.
Completely out of sight under the sink: The compact, tankless design connects to your existing water supply and waste outlet and tucks away entirely in the under-sink cabinet — nothing on the worktop, no alterations to your existing pipework.
Filter changes that take seconds, not an afternoon: The PPC filter lasts up to 12 months and the RO filter up to 24 months. When a change is due, the filter life indicator lets you know in good time — and swapping it out takes just a few seconds.
Cut hundreds of pounds off your water bill every year: Regular mineral water buyers can save several hundred pounds annually with the PureFina — producing up to 1,500 litres of filtered water per day at just 80 W.
Product description
If you're still lugging home cases of bottled water every week, there's a better way. The Klarstein PureFina under-sink water filter connects directly to your existing plumbing and delivers fresh, filtered water straight from a dedicated tap — no bottles, no bulk-buying, no compromise on quality.
At its core is a 5-stage reverse osmosis system that filters contaminants down to particles smaller than 0.0001 microns — the same purity level as premium bottled water. It reliably removes heavy metals, chlorine, bacteria, nitrates, and microplastics from your tap water. A built-in TDS sensor monitors water quality in real time and displays the results, so you always know exactly what you're drinking. The display also tracks filter life: the PPC filter lasts up to 12 months, the RO filter up to 24 months, with timely reminders when a change is due.
The tankless design fits neatly out of sight beneath your sink, connecting to your existing water supply and waste pipes. There's nothing on your worktop. The dedicated tap that comes included requires just a single hole to fit.
Particularly well suited to families with young children, older adults, or anyone who wants consistent reassurance about water quality at home. If you're regularly buying mineral water, the PureFina can save you hundreds of pounds a year.
Get yours today and make great-tasting, clean water an everyday given — straight from the tap.
Features
- Water output: 400 GPD / 1,500 litres per day
- Filtration ratio: 2:1 (unfiltered to filtered water)
- Flow rate: 1 litre per minute
- 5 filtration stages: 1. PP filter (suspended particles), 2. Activated carbon filter (odours and taste), 3. High-precision PP filter (fine particles), 4. RO filter (dissolved substances), 5. Carbon post-filter (microbes)
- PPC filter lifespan: up to 12 months
- RO filter lifespan: up to 24 months
- Quick filter change in seconds
- Tankless system — direct connection to water supply and waste pipes
- Dedicated tap included
- Single-hole tap installation
- Minimum water pressure: 1 bar
- Maximum water pressure: 4 bar
- Water temperature: 5–38 °C
- Ambient temperature: 4–40 °C (indoor use only)
- Operating noise: < 55 dB
- Power consumption: 80 W
- Power supply: 100–240 V~ | 50/60 Hz
- Device type: under-sink water filter / under-sink filtration system
- Power: 80 W
- Volume: 500 litres
- Reverse osmosis: removes contaminants from tap water
- Under-sink installation: no visible unit on the worktop
- Pressure vessel: filtered water available on demand
- Water quality: removes contaminants and heavy metals
Dimensions and Technical Details
- Dimensions (filter unit): approx. 13.5 x 46 x 36 cm (WxHxD)
- Cable length: 1.45 m
- Weight: approx. 12.5 kg
What will be delivered?
- 1 x water filter device
- 1 x water tap
- 1 x PPC filter
- 1 x RO filter
- Multilingual user manual
Delivery & shipment
Shipping time: 1 - 2 days
