The HydroFLOW product range

Pearl

A small, smart device that clips externally onto the home’s water pipe — no pipe cutting, no plumber, no system changes. An eco-friendly solution for managing limescale in homes.

Up to 24mm pipe diameter Plug-in connection Self-installation No chemicals or salt 3-year warranty
A smart home solution for limescale treatment

Simple limescale management for homes

The HydroFLOW Pearl helps reduce limescale using unique, globally patented electronic technology. Unlike traditional softeners, it treats the entire plumbing system with no salt or chemicals. This helps keep boilers, pipework and appliances running efficiently. With simple plug-in operation and low maintenance, the HydroFLOW Pearl is an eco-friendly way to manage limescale in smaller homes — suitable for all pipe types up to 24mm, including washing machines and water heaters.

No salt or chemicals

Treats the entire plumbing system without adding anything to the water.

Plug-in, self-installation

No need for a plumber and no pipe cutting.

Protects boilers and appliances

Keeps water heaters, pipework and washing machines running efficiently.

Easier cleaning

Makes it easier to clean limescale from showerheads, taps and kitchen/bathroom surfaces.

GreenProGreen label
Solar ImpulseRecognised clean solution
European standardCE
US/Canadian standardUL / CSA
The household challenge

Limescale tends to appear on

Inside heating systems

Impairing boiler efficiency and driving up energy consumption.

Showerheads and taps

Clogged showerheads and reduced water flow.

Kitchen and bathroom surfaces

Stubborn stains on glass, tiles and sinks.

While HydroFLOW doesn’t remove minerals from the water, it helps control limescale. The Pearl unit clips onto the pipe and applies its unique signal, encouraging limescale to form as tiny particles in the water instead of hard deposits on surfaces. Over time, this can help reduce existing limescale and make it easier to clean new build-up.

Installation details

Easy, simple self-installation

The HydroFLOW Pearl is fitted externally onto any type of water pipe up to 24mm, continuously inducing a unique signal that affects the natural salts present in the water.

Simple installation

Clips externally onto the pipe and plugs into a standard power socket — no plumber required.

Self-installation
Pipe size

Fits all household pipe types up to 24mm.

Up to 24mm diameter
Power supply

Simple connection to a standard household power socket.

Plug-in connection
FAQ

Questions about Pearl

Who is Pearl for?
For household applications such as washing machines and water heaters, and for reducing hard limescale in home plumbing systems, on pipework up to 24mm.
Can I install it myself?
Yes. Pearl clips externally onto the pipe and plugs into a socket — no plumber and no pipe cutting required.
Where does the limescale go?
It simply stays in the water as tiny suspended particles that flush away with the flow, instead of building up on pipe walls and heating elements.
Considering a solution for your home?

Why combine two treatment points — not just one

Full protection starts at two points, not one

Pearl is an excellent solution for focused treatment at a specific point — for example, the cold-water line feeding the water heater, where limescale and Israel’s hard hot water do the most damage. But if you want protection for your entire home water system, we recommend combining it with Pearl Plus at the main inlet — giving you both targeted treatment at the most sensitive point and broad coverage for the whole home.

At the home’s main inlet

Pearl Plus

A strong signal that propagates over long distances — general protection for the entire home water system.

+
On the cold-water line to the heater

Pearl

Targeted protection at exactly the point where limescale and hot-water hardness do the most damage.

This combination is especially recommended for larger homes or hard, saline tap water — targeted and broad protection together. In the shop you’ll find pricing for each unit separately, as well as a special price for buying both units together.
To the shop ←

Ready to get rid of hard limescale at home?

Pearl is the simplest home solution — no plumber, no chemicals.