Best Water Purifiers Deals Online in the UK (25 Deals Found)

Last Updated - 19/06/2026 Sort By:

Best Choice
COSTWAY

New
COSTWAY Countertop Reverse Osmosis Water Filter, 5-Stage RO + PPC Water Filtration System with UV Light, 4:1 Pure to Dra
【5-Stage Deep Filtration】 This countertop water filter turns tap water into bottled-grade refreshment through a stainles

£189.95
Best Value
BRITA

New
BRITA Marella Water Filter Jug Graphite (2.4L) Starter Pack incl. 3x MAXTRA PRO Pure Performance cartridge - fridge-fitt
All-Rounder with the innovative BRITA filtration technology: 150 litres of filtered water with just one cartridge, fitti

£19.99 £35.49
New
Faucet Filter Cotton Bag Tap Water Purifier Thickened with T-Strap for Kitchen
1~5x Noise Cricket Hidden Pranks Chirp Boring Noise Sound Maker Cricket Beep. Electric LED Mosquito Killer Lamp Fly Trap

£7.99
Waterdrop

New
Waterdrop Instant Electric Water Filter Jug with a 3-Months Filter, 3.5L Countertop Water Filter System, Reduces Chlorin
[Upgrade your jug today] With its 𝐞𝐥𝐞𝐜𝐭𝐫𝐢𝐜 𝐝𝐞𝐬𝐢𝐠𝐧 and one-key control, this water filter jug gives you an

£47.99
New
5-stage water purifier with PP, CTO, resin, GAC, UF and PP cotton filters
The 5-stage water purifier is a household purifier designed to provide clean and safe drinking water. With filters inclu

£38.14
Waterdrop

New
[Alkaline Mineral] Waterdrop CoreRO Reverse Osmosis System, NSF/ANSI 58 & 372 Certified, 7-Stage Countertop Reverse Osmo
【7-stage Filtration】: This countertop reverse osmosis system is tested by SGS to reduce TDS, PFOA, PFOS, Chlorine, Salt,

£259.00
Aqua Optima

New
Aqua Optima Liscia Water Filter Jug & 3 Evolve+ Filter Cartridges 2.5L White - Fridge & Dishwasher Friendly, Easy Fill -
SLEEK, SPACE-SAVING DESIGN: Enhance your kitchen with the Aqua Optima Liscia water filter jug. Its slim, fridge-fitting

£11.24 £11.99
Used
KFlow (Bluevua) Ropot Countertop Reverse Osmosis Water Purifier System
Kflow Ropot Countertop Reverse Osmosis Water System. Eco-Friendly Recycling Technology: Unlike traditional under-sink RO

£89.99
Jimmy

New
Jimmy R9 Pro Reverse Osmosis Water Filter System Countertop, Cold and Instant Hot Water Dispenser, Mineralized RO Water
Advanced 7-Stage Filtration with Lab-Certified Purity: The JIMMY R9 PRO Reverse Osmosis Water Purifier has a high-tech f

£459.99
New
3 Stage Whole House Water Purifier and Softening Filter Kit Salt Free 3/4" BSP
Water Purifier and Softener Filter Kit - Salt Free. In case your feed water contains a high concentration of suspended m

£69.00
40% Off
BRITA

New
BRITA Flow XXL Water Filter Tank (8.2L) incl. 1x MAXTRA PRO Pure Performance cartridge - fridge-fitting dispenser for fa
Perfect for fridge shelf or countertops with convenient tap and sliding lid for easy refilling and cleaning (BPA-free an

£35.99 £59.99
Waterdrop

New
Waterdrop A2 Countertop Reverse Osmosis System, Hot and Cold RO System, Portable Pure Water Tank, Bottleless Water Coole
[𝟓-𝐬𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧] Waterdrop reverse osmosis water filter has a 0.0001μm RO membrane to reduce TDS, PF

£449.00
New
4L/750W Water Distiller Electric Purifier Stainless Steel Glass Water Filters UK
It adopts high quality stainless steel, which is anti-skid and wear-resistant. With portable design, it does not take up

£68.89
Waterdrop

New
[𝐌𝐢𝐧𝐞𝐫𝐚𝐥𝐢𝐳𝐞𝐝] Waterdrop WD-A2G Countertop Reverse Osmosis System, 𝐇𝐨𝐭 𝐚𝐧𝐝 𝐂𝐨𝐥𝐝 RO, Portable Pure Wa
𝟔-𝐬𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Waterdrop reverse osmosis water filter has a 0.0001μm RO membrane to reduce TDS, PFO

£459.00
New
3.6L Water Purifier Reduces Fluoride with Filter Jug Cartridge Water Filtration
Features: -It uses quadruple filtration to effectively intercept minerals, remove residual chlorine and reduce scale.-Ma

£13.89
Waterdrop

New
Waterdrop Instant Electric Water Filter Jug with a 3-Months Filter, WD-ED61B 3.5L Countertop Water Filter System, Reduce
⚡𝐓𝐡𝐢𝐬 𝐬𝐲𝐬𝐭𝐞𝐦 𝐃𝐎𝐄𝐒 𝐍𝐎𝐓 𝐥𝐨𝐰𝐞𝐫 𝐓𝐃𝐒 𝐯𝐚𝐥𝐮𝐞. If you prefer low TDS value, please choose Waterdro

£49.99
New
Tap Water Filter Purifier Faucet Stainless Steel Pure Filtration System Kitchen
The compact size fits most standard household faucets with simple installation and no complex tools required. Remove the

£32.00
New
ALTHY Stainless Faucet Tap Water Filter Purifier Filtration System Kitchen
Althy Water, Healthy Life. All products provide ALTHY official one-year warranty. ●VARIOUS APPLICATION: our faucet water

£43.20
New
5L Water Filter Cooler Dispenser Purifier Chilled Tap Water Home Kitchen
Enjoy fresh, clean, chilled water without heavy bottles or plumbing. Mains-operated with a 5L tank, it’s compact and eas

£69.99
New
Water Drinking Faucet Purifier Filter Home Kitchen Dining Front Sink Filter Tool
With 3 different interfaces. It is not possible to judge whether the faucet is suitable. Room: Kitchen, Bathroom. Do not

£6.63
New
ALTHY Stainless Faucet Tap Water Filter Purifier Filtration System Kitchen
Perfect for modern kitchens, the ALTHY Stainless Faucet Water Filter combines style, practicality, and healthier hydrati

£30.10
New
3.6L Quadruple Filtration Water Purifier Kettle Auto Outlet and Filter Reminder
Features: -It uses quadruple filtration to effectively intercept minerals, remove residual chlorine and reduce scale.-Ma

£11.89
New
4L Distiller 304 Stainless Steel Water Distiller Purifier - UK Shipping Only
Made from food-grade quality materials: an elegant water distiller on the table top made of high-quality, food-safe 304

£84.49
New
3 x LRG Authentic Japanese Kishu Binchotan Charcoal Water Purifier Filter Sticks
From a small region and its coastline in Japan. This wood does not grow anywhere else in the world. Length 12-22 cm (dep

£19.90
New
CO-Z 4L 750W Gold Water Distiller Machine Stainless Steel Purifier Distilling
CO-Z Water Distiller, 100% Stainless Steel Distilled Water Machine for Home Countertop Table Desktop, 4L Distiller Water

£63.10

25 Water Purifiers deals are available from: Amazon, eBay stores, starting from £6.63.
The biggest discount we found is 44% on BRITA Marella Water Filter Jug Graphite (2.4L) Starter Pack incl. 3x MAXTRA PRO Pure Performance cartridge - fridge-fitting jug with digital LTI and Flip-Lid - now in sustainable Smart Box packaging at Amazon.
The lowest price we found is £6.63 while the highest is £459.99.
Prices for the best Water Purifiers deals average at £105.25.
Last updated on June 19, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Water Purifiers.