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Aqua-Rex Physical Water Conditioner

Aqua-Rex is the name used in the United States for the British Electronic Water Softener called Water-King which is designed and manufactured by Lifescience Products Ltd.

Water-King is an advanced electronic device that has been used for the treatment of hard water in the UK and the rest of the world since 1993. It is widely used in homes, schools, offices, factories and hotels with many hundreds of thousands installed and successfully working. Water-King is also the only device of its type to have been scientifically tested to prove that it can deliver partially softened hot water.

The name "Waterking" is a USA registered trademark for a brand of conventional water softeners so we have adopted the Latin translation Aqua-Rex as the name for Water-King in the USA. All technical details are identical. Aqua-Rex provides the same excellent product range and the same superior customer service in the USA as Water-King does in the UK and the rest of the world.

Leaflets about Aqua-Rex in the USA are available.

The Specifiers Guide for engineers is available here (PDF).

Click here for Residential and Home Owners

Click here for case studies and testimonials

Click here for the Cooling Tower Case Study


A copy of the Aqua-Rex Installation, Operating & Maintenance Instructions for the WK1, WK2 & WK3 can be found here (PDF).

Click here for technical downloads and published articles (Link will open a new window)

Click here to view further information and background on the Aqua-Rex range. This link will open our UK Water-King Web-site.








The iconic London 'Gherkin' office building has sixty six Water-King's installed in it .

Contact details for Aqua-Rex LLC
t 1-877 640 2170
c 949 887 2170
e sales@aqua-rex.com
2230 W.Chapman Avenue
Suite 247
Orange, CA 92868