Advertising Disclosure Water Filtration Softeners Comparison - June 2025
7 Best Water Filtration Softeners In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3 Best Value  9.6Exceptional | 4  9.4Excellent | 5  9.3Excellent | 6  9.2Excellent | 7  9.1Excellent |
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ModelBWT WS555 Hi Flow Luxury Water Softener (compatible with salt or tablet) 14 Litres | Model iSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System and Ultimate Water Softener with Alkaline Remineralization, Booster Pump and UV Ultraviolet Filter | Model Waterdrop X8 Reverse Osmosis System, Water Softener, NSF/ANSI 58&372 Certified, 800 GPD Tankless Reverse Osmosis Water Filter, 9-Stage Undersink RO Water Filtration System, 2:1 Pure to Drain | Model BWT WS355 Standard Electronic Water Softener, Blue, 14 Litre | Model Waterdrop TSA Under Sink Water Filter System, 3-Stage High Capacity Water Filtration System, NSF/ANSI 42 Certified,Reduce PFAS, PFOA/PFOS, Reduce Lead, Chlorine, Bad Taste | Model iSpring WCS15KG Water Softener, Hi Flow Electronic Demand/15,000 Grain/100% Limescale Removed with Backwash Feature for Households, Up to 6 People, 9 Litre | Model Kinetico Block Salt for Water Softeners - Genuine Kinetico Product - Delivers Superior Performance - 6 packs with 12 salt blocks in total |
BrandBWT | Brand iSpring | Brand Waterdrop | Brand BWT | Brand Waterdrop | Brand iSpring | Brand KINETICO |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews |
Features | ||||||
Easy installation 9.1 | Easy installation 7.9 | Easy installation 7.7 | Easy installation 8.6 | Easy installation 8.1 | Easy installation 7.9 | Easy installation 7.7 |
Worth the money 9.4 | Worth the money 7.9 | Worth the money 7.7 | Worth the money 7.9 | Worth the money 7.4 | Worth the money 7.2 | Worth the money 7.0 |
Tech Specs | ||||||
product dimensions 48 x 27 x 60.2 cm 22.55 kg | product dimensions 39 x 23 x 46 cm 16 kg | product dimensions 42.5 x 46.2 x 15.9 cm 16.74 kg | product dimensions 48 x 27 x 60.2 cm 23.19 kg | product dimensions 37.79 x 16.9 x 43 cm 3.13 kg | product dimensions 30 x 50.5 x 50 cm 22.66 kg | product dimensions 30 x 20 x 30 cm 48 kg |
item weight 22.5 kg | item weight 16 kg | item weight 16.7 kg | item weight 23.2 kg | item weight 3.13 kg | item weight 22.7 kg | item weight 48 kg |
customer reviews4.7 4.7 out of 5 stars 98 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 2, 110 ratings 4.7 out of 5 stars | customer reviews 4.8 4.8 out of 5 stars 32 ratings 4.8 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 59 ratings 4.4 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 3, 517 ratings 4.5 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 23 ratings 4.5 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 452 ratings 4.6 out of 5 stars |
color Blue | color white | color - | color Blue | color Connect to home faucet | color - | color White |
size 14 Litre | size - | size - | size 14 Litre | size - | size 15KG | size 6 Packs - 12 Blocks |
batteries required No | batteries required No | batteries required - | batteries required No | batteries required - | batteries required No | batteries required - |
batteries included No | batteries included No | batteries included - | batteries included No | batteries included - | batteries included - | batteries included - |
item package quantity 1 | item package quantity 1 | item package quantity - | item package quantity 1 | item package quantity - | item package quantity - | item package quantity - |
Available On | Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
2iSpring19% OffiSpring RCC1UP-AK 100GPD Under Sink 7-Stage Reverse Osmosis RO Drinking Filtration System and Ultimate Water Softener with Alkaline Remineralization, Booster Pump and UV Ultraviolet Filter
7.9 Easy installation7.9 worth the moneyWhy we love it
Removes up to 99% of contaminants.
Includes a power-saving UV filter.
Easy DIY installation under the sink.
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9.6
3Waterdrop31% Off
Waterdrop X8 Reverse Osmosis System, Water Softener, NSF/ANSI 58&372 Certified, 800 GPD Tankless Reverse Osmosis Water Filter, 9-Stage Undersink RO Water Filtration System, 2:1 Pure to Drain
7.7 Easy installation7.7 worth the moneyMain highlights- 𝗧𝗮𝗻𝗸𝗹𝗲𝘀𝘀 𝗘𝗮𝘀𝗲: This reverse osmosis water system has a compact and stylish look. Compared with the traditional tank RO system, it saves 70% undersink space. You can effortlessly replace the filters in 3s without moving the system or using any tools. Note: This reverse osmosis system requires under-sink electricity.
- 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝗮𝗻𝗱 𝗣𝗿𝗲𝗰𝗶𝘀𝗶𝗼𝗻: This tankless RO system boasts a smart faucet to track water quality with real-time TDS monitoring. And its filter life reminder function can help you replace filters in time to ensure your drinking water quality. The 24-month RO filter lifespan saves you the hassle and cost of frequent replacement.
- 𝗘𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝘁 𝗙𝗶𝗹𝘁𝗿𝗮𝘁𝗶𝗼𝗻: The reverse osmosis water filter can filter 800 gallons of pure water per day. By its 2:1 low drain ratio, this system can produce only one cup of wastewater for every two cups of pure water, which is ideal for daily drinking and cooking.
- 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗥𝗢 𝗙𝗶𝗹𝘁𝗿𝗮𝘁𝗶𝗼𝗻: This undersink reverse osmosis water filter effectively reduces Chloride, Lead, TDS, Fluoride, PFOA, PFOS, Sand, Odor, Taste, Salt, and more. It boasts a 9-stage filtration including 0.0001μm RO membrane to guarantee water safety and quality.
- 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝗖𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: Waterdrop X8 reverse osmosis system is certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material to ensure your water safety and quality.
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
