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. Approved for potable water. Approved for process water. Article 95 compliant. Drinking Water Inspectorate (DWI) approved.

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

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


Ultralox® Fact Sheet

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

At a glance

BS EN approved: BS EN 900:2007 and BS EN 974:2003

Sg (at 200 Celsius): 1

Intended dose rate: 0.2ppm to 1.5ppm (higher for shock dosing)

Drinking Water Inspectorate Approval: DWI 56.4.1074 under Regulation 31 4A of the Water Supply (Water Quality) Regulations 2000 SI No 3184 and The Water Supply (Water Quality) Regulations 2010 SI NO 994 (W.99).

Shock-dosed for 24-hours before maintenance in a food and beverage manufacturing site.