Top 8 Water Softeners for Homes UK – Under-sink Filters

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1. Water2buy

Water2Buy W2B200 Water Softener | Efficient Digital Meter Softener up to 6 People | 100% Limescale Removed

Water2buy - This softener is equipped with an efficient digital meter control so it consumes less salt and water. Use the free Water2Buy easyConnect app for easy setup. Approximately 37 litres of water is used during a regeneration. This meter softener measures your water usage and only regenerates when necessary, making it more efficient.

It is engineered for both city and well water. The w2b200 provides complete limescale-free water for a family of 1 - 4 and can generate approximately 1, 250 litres of filtered soft water every day. Built to last, polyethylene tank, high strength corrosion resistant fiberglass, adjustable water hardness, and prefilled premium-grade ionX resin. The pre-fitted bypass valve will maintain optimal water pressure throughout your home. Automatic self cleaning: the water softener quietly takes care of itself performing a regeneration cycle automatically when needed.

Do allow space for hoses when planning your install. The size is 220 x 525 x 650 mm and is suitable for installation in a garage, basement or kitchen cupboard. What’s in the box: water softener, manual, bypass valve pre fitted, 3/4inch 22mm HIGH FLOW connection fittings, bypass lever, EU power supply, uk power supply, silicone. It regenerates at 3am when the water supply is not in use, so there is no impact on normal water usage. A power source is required, however only a tiny amount of power is consumed annually Approx 20 euro/pounds.
Height65 cm (25.59 Inches)
Length42 cm (16.54 Inches)
Width22 cm (8.66 Inches)
Part NumberAS200a
Warranty7 years from date of purchase.

2. Eddy

Eddy Electronic Water Descaler, Water Softener Alternative UK/EU Version

Eddy - Easy customer installation - Metal or Plastic pipes - Comes with cables for pipes up to 28mm diameter. Reduce limescale in the home and business. Emulates softened water without altering TDS keeps healthy minerals. 12 month money-back Guarantee + Lifetime Repair or Replace warranty. No salt alternative to a water softener.
ManufacturerEddy Water Descalers
Height9 cm (3.54 Inches)
Length17 cm (6.69 Inches)
Width3.5 cm (1.38 Inches)
Part Number5060180220020

3. Monarch

Monarch Midi FreeFlow Water Softener Ultimate Series Includes 15mm Hoses

Monarch - Saves you money. Prevents any new scale. Protects your appliances. Removes existing scale. Kinder to your skin, Bath time bliss.
Height1 cm (0.39 Inches)
Length1 cm (0.39 Inches)
Weight1 kg (2.2 Pounds)
Width1 cm (0.39 Inches)
Part NumberMMWS

4. Water2buy

Timer Water Softener W2B300 by Water2Buy | Hard Water Treatment System | Removes All Limescale

Water2buy - Our water treatment system is designed to be as noiseless and intuitive as possible, and will delay cleaning until 3 am for minimal disturbance! Removes all limescale: our powerful water2buy water softener eliminates 100% of limescale from your home, healthy water! 1417 litres of water a day: with its ability to provide over 1417 litres of soft water a day, every day! Won’t affect water pressure: you won’t even notice our water softener system is installed! Enjoy your home’s usual water pressure for taking showers, running baths and washing dishes – just with filtered, with hardly any effort! Simply fit it to your water supply and enjoy soft water all day, this water filter provides more than enough limescale-free water for a family of seven! Quiet cleaning: say goodbye to noisy hard water softeners.

Height66 cm (25.98 Inches)
Length57 cm (22.44 Inches)
Weight24 kg (52.91 Pounds)
Width33.4 cm (13.15 Inches)
Part NumberAS300
Warranty7 years warranty for parts.


KSTE Filtered Shower Head Shower Head Filter,Bathroom Home Water Purifier Softener,Chlorine Heavy Metal Remover.

KSTE - Help people with dry and sensitive skin improve their condition of skin and hair. Easy to install, no tools required. High quality material and excellent workmanship makes it durable and wear-resistant. 20mm universal connections fit most of shower types, including fixed, spraying and hand-held showers. Can effectively remove chlorine, bacteria and heavy metal in water, making water purer and softer.
Height6 cm (2.36 Inches)
Length9.5 cm (3.74 Inches)
Weight0.08 kg (0.17 Pounds)
Width6 cm (2.36 Inches)
Part NumberDRG-1104-936

6. Harveys

3 Packs, Harvey Block Salt for Water Softeners, Boxed each pack contains 2 salt blocks, Original Pure Grade A Food Quality Salt

Harveys - Suitable for most standard water softeners that use block salt, kinetico, it is NOT suitable for the following models: HarveyArc, Monarch, twintec and Minimax models please note, Crown, including most Harvey, Minimax Innova and TwinTec Cobalt models, as these use our Mini Curve Salt Blocks.

Each pack contains 2 salt blocks 6 in total, each block weighs 4kg. Our salt is made in the UK, sourced from trusted suppliers, and manufactured to the highest quality. Harvey’s original block salt - 3 packs, boxed securely. Water softeners need salt in order to regenerate and continue to efficiently remove the minerals that cause limescale. Pure, grade a / food quality salt standard BS EN973.
Height10 cm (3.94 Inches)
Length30 cm (11.81 Inches)
Weight10 kg (22.05 Pounds)
Width25 cm (9.84 Inches)
Part Number2502
ModelHarvey's Block Salt

7. Aquahomegroup

2 Cartridges Included -Consistent Water Flow Showerhead Filter, High Output Shower Water Filter to Remove Chlorine and Fluoride, AquaHomeGroup 15 Stage Shower Filter with Vitamin C for Hard Water

Aquahomegroup - It acts as a moisturizer, purifier and softener to make sensitive skin feel its best. Effective shower filters to remove chlorine and fluoride, heavy metals and other sediments. They help to remove rust and iron. Lifetime investment in pure water: purified water activates your cells, increases the oxygen content in your blood, REMOVES UNPLEASANT ODORS and impurities, quickly relieves fatigue, slows down aging and makes your skin smooth.

This shower head water softener makes bathing KIDS and PETS pleasant and SAFE. Our shower head filter with 15 stages of maximum water filtration makes skin SOFTER, chemical-free, nails STRONGER and hair SHINIER. Consistent water pressure and less scale build-up: our excellent hard water shower head filter is also a shower head water softener so you will have much less bathtub residue.

Our vitamin c shower filter keeps eczema, handheld, dry itchy skin and dandruff at bay! Full compatibility: our easy to install universal shower filters can be placed on wall-mounted, rainfall and combo shower heads for versatile home use. Premium care: your body deserves fresh, odorless water.
Height8.64 cm (3.4 Inches)
Length20.07 cm (7.9 Inches)
Weight0.2 kg (0.44 Pounds)
Width8.64 cm (3.4 Inches)
Part NumberAHG15

8. BWT

BWT WS555 Hi Flow Electronic Demand Block/Tablet Water Softener, Blue, 14 Litre

BWT - Includes installation kit. Easy to install. 5 years parts & 2 years labour at home warranty. Compact design: fits in a kitchen cupboard. Wras approved product.
Height60.2 cm (23.7 Inches)
Length48 cm (18.9 Inches)
Weight22.55 kg (49.71 Pounds)
Width27 cm (10.63 Inches)
Part NumberWS555
WarrantyFive-year parts and 2 year labour warranty at home from date of purchase against defects in materials and workmanship subject to correct installation, filling in & returning warranty registration card.