See our water softener

Engineered in the UK

The S4 is the latest generation softener from TwinTec. It's been designed and engineered in the UK to work with all types of British plumbing systems and all sizes of family, just to make life simple. Conforms to British Standard BS14743. Patented (view patent certificate)

Softened water 24/7

Our water softeners pack a little more punch than all the rest. We invented a water softener with two cylinders, unlike the industry standard of just one. So whilst one is regenerating the other is still working to soften your water. This means the TwinTec S4 Water Softener provides you with an uninterrupted supply of softened water, no matter how much water your family guzzles.

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Fits under your kitchen sink

At just 49cm high, the S3 will easily fit under the kitchen sink - in fact, it was specifically designed with this in mind. The softening tanks have been designed to maximise the available space, whilst being small enough to fit into tight spaces.

Height: 490mm
Width: 205mm
Depth: 440mm

Easy to load block salt

Is there anything worse than pouring heavy bags of salt, trying not to make a mess? That’s why the S4 uses light blocks of salt for easy loading. Our specially manufactured block salt last longer too as the TwinTec S4 Water Softener only regenerates when it needs to, rather than on a daily timer like other systems.

We also love the clear lid so you can see when to top up. The beauty is in the details.

Learn more about our Block Salt

Non electric

The S4 is so efficient it has been designed to work solely off the power of your water supply. There are no timers, computers or manual adjustments to be concerned with. What's more, there is no electrical feed so power cuts are of no concern. Sustainable energy, without the need for a power outlet. Genius!

Get a quote

Please call us on 020 8441 1222, email us or complete the form below

Our Customers

"We have been using the TwinTec S4 Water Softener with total satisfaction for over 5 years now. It is simplicity itself. The machine is small and unobtrustive, absolutely maintenance free and silent in use. I have owned a number of softeners, but never one as efficient as the S4"

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  • Good Housekeeping

    TwinTec products are made in Britain

  • WRAS approved product

    TwinTec is a WRAS approved product