ActivFlo water conditioners are the No.1 product when it comes to whole-house protection against limescale build-up.

No chemicals
or taint
Easy
to install
Fit and
forget
Save
money

ActivFlo Domestic Compression 15mm

Easily fit to a standard 15mm water pipe.

ActivFlo Domestic Compression 22mm

Easily fit to a standard 22mm water pipe.

ActivFlo Solo 1/2"

For easy installation at
point-of-use on any appliance using 1/2” supply.

ActivFlo is the complete solution to hard water in the UK

ActivFlo’s catalytic water conditioner changes the structure of hard water without using salts or chemicals. The treated water prevents limescale build-up and reduces existing limescale problems, saving you money on your bills. ActivFlo Water Conditioners make heating systems and appliances more efficient. Pipework and appliances last longer and work better with water treated by an ActivFlo water conditioner. ActivFlo doesn’t take up valuable cupboard space and once fitted no maintenance is required. One ActivFlo water conditioning device is enough to protect an entire home. No hassle, no on-going costs and no maintenance. ActivFlo is the easy solution to hard water problems.

Water conditioner VS. water softener?

Watch our explainer video and discover the different types of hard water treatments on the market.

What is hard water?

Learn more about hard water in the UK, find out if you live in a hard water area, and discover the impact hard water has on our health and our homes.

How does ActivFlo reduce hard water in your home?

ActivFlo conditions hard water as it enters your home using a special alloy and some clever science. This prevents limescale build-up and prolongs the lifespan of your water system and appliances.

Ready to Choose Your ActivFlo?

Explore our Domestic Range of Water Conditioners

How can we help?

Are you an installer?

How do I know ActivFlo actually works?

ActivFlo’s catalytic technology is scientifically proven and used across the industry.
It transforms limescale-causing minerals into non-adhering particles, and is backed by a 15-year guarantee.

My customers are used to salt-based softeners - how do I convince them?

Educate them: Unlike salt-based systems that remove minerals, ActivFlo retains them, offering a healthier, chemical-free solution. Plus, it’s zero-maintenance.

What if I have to replace a competitor’s system?

ActivFlo is a direct replacement with no running costs, making it an easy upgrade for cost-conscious customers.

Does ActivFlo make water ‘softer’?

It conditions the water rather than softening it, preventing scale while keeping the healthy minerals intact. No more slippery water feel!

Is installation complicated?

No! ActivFlo is quick and simple to fit – no electricity, no extra plumbing, and no complicated parts. Most installations take under 30 minutes.

Are you a Homeowner?

Will this actually stop limescale?

Yes! ActivFlo prevents new scale from forming and helps break down existing deposits over time. Less scrubbing, better water flow, and longer-lasting appliances.

How much does it cost?

ActivFlo is a one-time investment with no ongoing costs, unlike traditional systems that require constant refilling, servicing, or electricity.

Do I need a plumber to install it?

Yes, but the installation is quick and hassle-free, taking less than 30 minutes. Once installed, there’s nothing else to do. No maintenance, ever!

Will it save me money?

Yes! Preventing scale build-up reduces energy consumption by up to 7% per millimetre of scale, cutting energy bills and extending appliance lifespan.

Is it safe for drinking water?

Absolutely. Unlike salt softeners, ActivFlo does not alter the water composition, keeping it natural, healthy, and safe.