Better still, it's only 47.6cm tall and doesn't require space underneath for cartridge changes. That means it will fit in your undersink cupboard, unlike most other waters softeners and scale reduction systems.

There are no electrical connections or backwash drains on a OneFlow+ so all you need to do is pipe water in on one side and out on the other.

OneFlow®+ Salt-Free Scale Prevention and Water Filtration Systems use a commercially-trusted, physical water treatment technology to keep scale from forming on pipes and reducing appliance life, along with a high-capacity water filter to remove foul tastes, odours, and sediments for better tasting tap water. A single, compact unit with dual cartridges replaces a space-consuming water softening system and water filtration system — using no salt, chemicals, or electricity.

With a 38 litres per minute maximum flow rate this system is ideal for the whole house up to 5 bedrooms and 2 to 3 bathrooms.