Non electric, efficient and compact enough to fit under the kitchen sink. Guaranteed softened water for your home and family.
The S4 is the latest generation softener from TwinTec. It's been designed and engineered in the UK by Harvey Water Softeners and works with all types of British plumbing systems and all size families, to make life simple. Conforms to British Standard BS14743.
Our water softeners pack a little more punch than all the rest as they have two cylinders, unlike the industry standard of just the one. So whilst one is regenerating the other is still working to soften your water. This means the TwinTec S4 provides you with an uninterrupted supply of softened water, no matter how much water your family uses.Find out more
At just 49cm high, the S4 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.
Our block salt was created for easy loading so that you don't find yourself handling unnecessarily heavy bags of salt. The specially manufactured salt was created to work with the S3 and make it as efficient as possible. By ensuring that the salt lasts longer the softener only regenerates when it needs to, rather than on a daily timer like other systems.
When salt needs to be topped up there is a red line that is visible through the clear lid design, which makes it easy for you.
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!
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