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Ultralox40® - a regulated stable, highly effective low concentration form of chlorine and particularly efficacious fast-acting biocide

Ultralox or Ultralox40® is an approved hypochlorous acid (HOCl), the active form of chlorine.

It is ideal for use in water hygiene and pipework treatment applications, where it quickly eradicates Legionella and other microbes. Ultralox is widely used across NHS sites.

Ultralox40 - approved hypochlorous acid, the active form of chlorine that works as a biocide

Further validation

HSG 274 states that “hypochlorous acid (HOCl), the form of chlorine that is most effective as a biocide”. Ultralox is effective at breaking down the biofilms which harbour pathogens.

Feature / application

  • Colourless

  • Used on domestic cold water systems

  • Used on domestic hot water systems

  • Low hazard

  • Breaks down biofilm at nominal operating conditions

  • Inhibits biofilm regeneration

  • Residual effectiveness against Legionella and Pseudomonas

  • Simple to monitor and dose

  • Shock dose solution

  • Emergency disinfection solution

  • Critical application solution

  • Retrofit permanent secondary disinfection solution

  • Skid system control and dosing (1 x 25Kg or 2 x 25Kg or 1 x 200L options)

  • Larger applications >25m3/day available

Did you know?

Ultralox® has been proven to reduce stubborn Legionella, TVC and Pseudomonas within weeks and can be shock-dosed or used as a permanent retrofit secondary disinfection solution? Ultralox is potable and process water approved.

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Suitable for

  • Hot and cold systems

  • System purges

  • Hospitals

  • Hotels

  • Care homes

  • Schools

  • Offices

  • Small offices and commercial buildings

  • Domestic systems

  • Drinking water

  • Breweries

  • Dairies

  • Food processing

  • CIP systems

  • Leisure centres

  • Poultry houses

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Ultralox® Fact Sheet

Understand common applications, usage, see test results and compare with other disinfection techniques

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WCS Group is a trading name for WCS Environmental Ltd, registered in England and Wales (Number 02184649) at 20 Grosvenor Place, London, SW1X 7HN. Head Office – 17 Wheatstone Court, Waterwells Business Park, Gloucester, GL2 2AQ. WCS Group is a Marlowe Critical Services Company owned by Marlowe plc. 2025© WCS Environmental Ltd.