PureLine 400GPD Undersink Reverse Osmosis Water Filter Black
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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: 3 - 5 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
Clean water straight from the tap: The tank-free under-sink filter sits out of sight beneath your kitchen sink and delivers filtered water on demand at 1 litre per minute — no jugs to fill, no bottles to haul in from the car.
Filters what you can't see: Five-stage reverse osmosis removes heavy metals, chlorine, bacteria, nitrates, and microplastics down to particles as small as 0.0001 microns. The integrated TDS meter displays your water quality in real time, so you always know what's coming out of the tap.
Say goodbye to bottled water bills: With a filtration capacity of 400 GPD (1,500 litres per day), the PureLine replaces bought-in mineral water entirely — putting several hundred pounds a year back in your pocket.
Effortless filter maintenance: Built-in filter life indicators take the guesswork out of upkeep — they tell you exactly when the PTC filter (up to 12 months) or RO filter (up to 24 months) needs replacing. The swap itself takes only a few seconds.
Peace of mind for the whole household: Especially well-suited for families with young children, older relatives, or anyone with a weakened immune system — wherever water quality genuinely matters, this under-sink filter has it covered.
Product description
Tap water in the UK and Ireland isn't always as clean as it tastes — and buying bottled water every week adds up fast. The Klarstein PureLine under-sink water filter gives you a smarter option: hospital-grade reverse osmosis filtration, hidden neatly beneath your kitchen sink, delivering clean drinking water straight from a dedicated tap.
The 5-stage filtration system strips out heavy metals, chlorine, bacteria, nitrates, and microplastics — down to particles as small as 0.0001 microns. That's purity that rivals premium bottled water, on tap, whenever you need it. A built-in TDS meter shows you real-time water quality so you can always see exactly what you're drinking. Filtration capacity sits at 400 GPD (approximately 1,500 litres per day), with a flow rate of 1 litre per minute.
Because it's a tank-free system, the PureLine connects directly to your existing water supply and waste pipe — no unit cluttering the worktop, no visible kit. Built-in filter life indicators tell you when it's time for a change: the PTC filter lasts up to 12 months, the RO filter up to 24 months. When the time comes, swapping filters takes only a few seconds.
It's a particularly sensible choice for households with young children, elderly family members, or anyone with a compromised immune system — and for anyone fed up with buying bottled water who'd rather save several hundred pounds a year instead.
Get the Klarstein PureLine today — because clean water shouldn't be something you carry home from the supermarket.
Features
- Filtration capacity: 400 GPD / 1,500 litres per day
- Filtration ratio: 2:1 (feed water to filtered water)
- Flow rate: 1 litre per minute
- 5-stage filtration: 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. Post-carbon filter (microbes)
- PTC filter lifespan: up to 12 months
- RO filter lifespan: up to 24 months
- Filter replacement in seconds
- Tank-free — connects directly to water supply and waste pipe
- Dedicated tap included
- Single-lever tap fitting (single-hole installation)
- Minimum inlet pressure: 1 bar
- Water temperature: 5–38 °C
- Ambient temperature: 4–40 °C (indoor use only)
- Operating noise: < 55 dB
- Power consumption: 60 W
- Power supply: 100–240 V~ | 50/60 Hz
- Device type: under-sink water filter with reverse osmosis
- Volume: 500 litres
- Installs under the sink — completely out of sight
Dimensions and Technical Details
- Dimensions (filter unit): approx. 13.5 x 39.5 x 39.5 cm (WxHxD)
- Cable length: 1.45 m
- Weight: approx. 12 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: 3 - 5 days