Scale Block Whole House Scale Inhibitors

Price range: £170.00 through £380.00 Incl. VAT

Our Scale Block Whole House Scale Inhibitors are a powerful limescale prevention system for your home. Utilising a cutting-edge technology called template-assisted crystallisation (TAC) which independent tests show to be 99.6% as effective as a water softener for preventing limescale build-up. Unlike traditional water softeners, these systems do not require a power supply or regular salt top-ups and the treated water retains its healthy minerals, keeping it safe for drinking.

Product Features
  • Eco friendly alternative to a traditional water softener
  • Low maintenance with no salt top-ups required
  • Treated water retains healthy minerals
  • 99.6% as effective as a water softener
Choosing Product Size
To size a system for your property, choose an option based on the usual number of occupants that live in the home. You have the choice between 1-2 occupants (10 litres per minute) or up to 6 occupants (20 litres per minute). Please refer to the table below for the product dimensions of each system. For higher flow rate applications, please see our range of Commercial Salt Free Scale Inhibitors.

Installation Info

These systems are designed to be installed on the feed to an entire property, supplied with filter housing, pre-filled filter cartridge, wall bracket and screws. Soldering or cutting of existing pipework may be required for installation. Note that for installations where new copper pipework is used, the system must be bypassed for at least 4 weeks to prevent contamination of the filter cartridge. Refer to the product manual for more information.

Help & Advice
Need help or advice on which size to choose? No problem, drop us an email, start a live chat or give us a call on 01622 933 853 and we’ll be sure to help.
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Scale Block Whole House Scale Inhibitors
Scale Block Whole House Scale Inhibitors
£170.00 – £380.00Price range: £170.00 through £380.00 Incl. VAT

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Scale Block Whole House Scale Inhibitors
Scale Block Whole House Scale Inhibitors
£170.00 – £380.00Price range: £170.00 through £380.00 Incl. VAT
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SCALE BLOCK WHOLE HOUSE SCALE INHIBITORS

Salt-Free Water Softener Alternative

As a reliable, salt-free alternative to a water softener these scale block whole house systems provide a ‘fit-and-forget’ solution to preventing limescale build-up in your pipework, heating system and appliances. Much like a water softener, the system works simultaneously to prevent new limescale formation and clear existing deposits over time; with very little maintenance required, thanks to a long filter lifespan of up to 3 years for whole-house applications. After this period, the filter cartridge can be easily changed with replacement cartridges costing less on average than running a traditional water softener.

How Does The Scale Block Work?
These scale inhibitors work using TAC technology, where limescale-forming molecules such as calcium and magnesium are rendered inactive and no longer able to form a hard scale. The chemistry of your water remains unchanged, meaning you can enjoy mineral-rich drinking water without the associated problems of hard water. This technology is the first effective salt and chemical-free limescale prevention method, independently tested to be 99.6% as effective as a water softener at preventing limescale build-up on heating elements.

How Long Does The Filter Cartridge Last?
For whole house applications where installed at the point of entry to a property, the filter cartridge needs to be replaced every 2-3 years. There will be signs that the cartridge needs replacing, such as scale formation on taps or shower heads. If installed on a private water supply, pre-treatment is recommended to ensure adequate lifespan. Further details related to private water supplies can be found in the product manual.

Please note if new copper pipework is used on the feed then the system needs to be passivated for a minimum of 4 weeks before installation

Why Choose Our Scale Block Whole House Range?

  • Simultaneously protects and clears existing limescale
  • Designed to be installed at the point of entry
  • Long life filter cartridge lasts up to 3 years
  • Easy to install and maintain solution
  • Water remains safe for drinking

Product Resources:
Scale Block Whole House Product Manual →
Scale Block Scale Inhibitors Info Sheet →

Product DimensionsHeightWidthDepth
Whole House (1-2 Occupants)360mm*190mm185mm
Whole House (6 Occupants)617mm*190mm185mm

*Height stated does not include wall bracket

Additional Information

Suitable For: No selection

Limescale Inhibitor, Home & Office
Point Of Use (Single Outlet)
Point Of Entry (Whole House)

Supplied With: No selection

Filter Housing (With Bracket)
Scale Block Filter Cartridge
Spanner & Screws

Port Sizes: No selection

Whole House (1-2 Occupants): 1”
Whole House (6 Occupants): 1”

Thread Type: No selection

Flow Rates: No selection

1-2 Occupants: 10 Litres Per Minute
Up To 6 Occupants: 20 Litres Per Minute

Max Hardness: No selection

1,300ppm

Temp Range: No selection

5⁰C – 43⁰C

Max Pressure: No selection

100psi


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Pete Cossar
7 October 2026
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Very pleased with the service. There was an issue with the water softener I ordered initially, but then following communications made the replacement process quite pleasant. Happily recommend this company. Thanks to Becky for working with me. Great follow up support 😊😊😊
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Michael Fey
2 October 2026
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Very Pleased with the services from the Sales Team
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Guy Brennan
26 September 2026
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First time using this company and product and i wasnt dissappointed. Communication was easy and quick resulted in an easy order and now having fitted the filter i can say its a great product easy to install and appears good quality apart from the four mild steel bracket screws stainless would have been better considering the environment these are fitted. All in all, very pleased and would highly recommend .
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Graham Quinn
25 September 2026
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Easy to order and fast delivery
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Steve Griggs
14 September 2026
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Excellent local company and genuinely lovely people to deal with. Really helpful and knowledgeable, with great advice about my water softener and the correct salt to use. They even gave me some resin cleaner at no charge, which was a very kind gesture. Fantastic friendly service and I’ll definitely be returning for my salt in future. Highly recommended.
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Don Carless
7 September 2026
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Excellent service. Product proved my softener was not working as it should. I fully serviced it and cleaned with Resin Clean returned to service and it is now working as designed. Very pleased.
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J P
27 August 2026
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If you're thinking about a water softener then i HIGHLY recommend Ultra Soft Water Softeners Ltd. Great softeners and exceptional customer service. The water softener I bought needed some adjustments with the installation setup where I supported throughout. The customer service is honestly next level. I had countless calls with Becky Gillett, the Sales Manager, over a period of months to get to the bottom of it. She was incredibly patient with me, staying on the phone and doing video calls to walk me through the programming instructions step-by-step while I changed the settings and ensured all was installed correctly. All the staff here have been great, but Becky really stuck with me from start to finish to make sure it was sorted and working well. It runs like a dream now. HIGHLY recommend them!
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Chris Collins
26 August 2026
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Easy to order, good prices and delivered on time. What more can you ask for.
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John L
26 August 2026
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Good rapid & efficient service
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Tony Hybel
17 August 2026
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Easy to order, quick delivery, good communication. Resclean worked a treat; one treatment cycle and soft water is back again from our 12 yr old softener!