ARNO——A more sustainable and healthier choice for your home.

Since the birth of ARNO, ARNO has been on a mission to provide homes across the UK, Ireland and neighbouring islands with a simple yet affordable way to improve health and sustainability for all its customers.

Our products are specially designed and developed to save water and energy, while reducing plastic waste with pure filtered drinking water straight from your kitchen tap. Installation is simple and with our optional chiller tank add-on you can also get instant chilled filtered cold water on tap.

Water filtration.

At the heart of our system is our WRAS Approved advanced ARNO Deluxe Pro Filter which has been specifically designed to give you the best experience across our cold and hot filtered water systems.

With a filtration accuracy of 0.05um, our Deluxe Pro Filter with its activated carbon block removes bacteria, heavy metals, chemical impurities, sediment and other large particles - while keeping good minerals such as calcium, magnesium, sodium, and sulphate in your water.

Simply put, our filter removes bad taste and odour from your water to give you healthier, tastier water for a great experience your whole family can enjoy.

Advanced 2-in-1 filtration.

Our AR5 Filter has also been developed to stop the build-up of limescale! Using revolutionary FOF limescale breakdown technology our AR5 Filter uses Ion exchange to destroy the construction of Ca (calcium) and Mg (magnesium) forming as CaCO3 (calcium carbonate). The Ca and Mg minerals are still left in the water as Ions, both of which support good health.

Limescale is a huge problem to many homes across the UK in hard water areas - by installing an ARNO tap with our AR5 Filter, the limescale gets broken down, leaving you with tastier and healthier water! With an ARNO hot filtered water system, the water is filtered before entering the heater tank, which removes 98% - 100% of limescale.

This helps protect your ARNO heater tank, keeping the maintenance low and working efficiently*.

A Rated energy efficiency.

Our advanced 2.4L and 4L Digital Nexus Tanks are ‘A Rated’ Energy Efficiency certified and have been further developed to be quieter while reheating. Decibels measured while heating are now between 25db and 42db. A domestic fridge can reach 47db.

Full WRAS approval.

Our ARNO Deluxe Pro Filter, Solo and Digital tanks are fully WRAS Approved. All our taps are built for WRAS Approval but currently only our 3-1 hot and 4-1 standard taps are fully WRAS approved. Our full tap range will soon be fully WRAS Certified.