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5 Best Water Filtration Softeners of 2026

Last Updated - 29/05/2026

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BWT

BWT WS555 | Hi Flow Luxury Water Softener | Takes Block Or Tablet Salt | 14 litres

BWT

£720.00

£741.00
(3% Off)

More Details
Main highlights
- Includes installation kit
- Free Home Commissioning
- Easy to install
- Compact design: fits in a kitchen cupboard
- All materials are BS6920 Certified
- 5 years parts & 2 years labour at home warranty
£720.00
£741.00 (3% Off)
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

BWT

BWT WS455 Hi Flow Electronic Demand Block/Tablet Water Softener, Blue, 10 Litre

BWT

£619.99

More Details
Main highlights
- Smart Water Monitoring – Reduces water and salt usage for cost efficiency.
- High Flow Performance – Ideal for power showers and modern plumbing systems.
- Fully Automatic Operation – Just top up with salt, no manual intervention needed.
- Flexible Salt Options – Works with both block and tablet salt for convenience.
- Fits Most Kitchen Cupboards – Compact design for easy installation in tight spaces.
- 22mm Hoses & Valves – Ensures maximum water flow without restriction.
£619.99
3
Best Value
15% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Harvey
15% Off

Harvey Block Salt for Water Softeners | Original Pure Grade A Food Quality Salt | 3 Bags, Securely Boxed | Each Bag Contains 2 Blocks | Efficient Softening Solution

Harvey

£28.05

£33.00
(15% Off)

More Details
Main highlights
- Suitable for most standard water softeners that use block salt, including most Harvey, Kinetico, Crown, Monarch, TwinTec and Minimax models (please note, it is NOT suitable for the following models: HarveyArc, Minimax Innova and TwinTec Cobalt models, as these use our Mini Curve Salt Blocks)
- Harvey’s original block salt, 3 packs, boxed securely. Each pack holds 2 salt blocks, totaling 6 blocks, each weighing 4kg, ensuring ample supply for efficient softening.
- Experience the purity of our Grade A water softener salt, meeting stringent standards (BS EN973), ensuring unmatched softening efficiency and water quality enhancement.
- Essential for water softeners, salt enables efficient regeneration, ensuring continual removal of minerals responsible for limescale buildup, maintaining optimal performance.
- Crafted in the UK, our salt, sourced from trusted suppliers, undergoes meticulous manufacturing to meet stringent quality standards, ensuring superior performance and reliability.
£28.05
£33.00 (15% Off)
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KINETICO

Kinetico Block Salt for Water Softeners - Genuine Kinetico Product - Delivers Superior Performance - 3 packs with 6 salt blocks in total

KINETICO

£26.99

More Details
Main highlights
- Saves You More: with efficient performance from the best quality salt blocks.
- Protects Your Softener: with no risk of sand, grit, and other impurities that do costly damage.
- Peace of Mind Purity: block salt guaranteed to be 99.9% food grade Pure Dried Vacuum salt (PDV).
- Kinetico Original: genuine Kinetico block salt from the leading water softener experts.
- Ideal for All Leading Block Salt Water Softeners: including most Harvey, TwinTec and MiniMax models (please note, it is NOT suitable for any model that uses curved block salt, such as the HarveyArc, MiniMax Innova, or TwinTec Cobalt
£26.99
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KINETICO

Kinetico Block Salt for Water Softeners - Genuine Kinetico Product - Delivers Superior Performance - 3 packs with 6 salt blocks in total

KINETICO

£26.99

More Details
Main highlights
- Saves You More: with efficient performance from the best quality salt blocks.
- Protects Your Softener: with no risk of sand, grit, and other impurities that do costly damage.
- Peace of Mind Purity: block salt guaranteed to be 99.9% food grade Pure Dried Vacuum salt (PDV).
- Kinetico Original: genuine Kinetico block salt from the leading water softener experts.
- Ideal for All Leading Block Salt Water Softeners: including most Harvey, TwinTec and MiniMax models (please note, it is NOT suitable for any model that uses curved block salt, such as the HarveyArc, MiniMax Innova, or TwinTec Cobalt
£26.99

5 Best Water Filtration Softeners of 2026

BWT WS555 | Hi Flow Luxury Water Softener | Takes Block Or Tablet Salt | 14 litres

BWT WS455 Hi Flow Electronic Demand Block/Tablet Water Softener, Blue, 10 Litre

Harvey Block Salt for Water Softeners | Original Pure Grade A Food Quality Salt | 3 Bags, Securely Boxed | Each Bag Contains 2 Blocks | Efficient Softening Solution

Kinetico Block Salt for Water Softeners - Genuine Kinetico Product - Delivers Superior Performance - 3 packs with 6 salt blocks in total

Kinetico Block Salt for Water Softeners - Genuine Kinetico Product - Delivers Superior Performance - 3 packs with 6 salt blocks in total

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