The WELS product rating system

The National Water Efficiency Labelling and Standards (WELS) scheme gives consumers information about the water efficiency of products.


WELS product rating system  

A Water Efficiency Labelling and Standards star rating label shows a water efficiency rating, out of six stars. It also shows the water consumption in litres per wash, and identifies that the appliance has been tested in accordance with Standard AS/NZS 6400. The model and load capacity of the appliance is also identified. The label directs the reader to to find out more information and to compare appliances.

A WELS star rating label indicates water efficiency for consumers.

The WELS scheme requires certain products sold anywhere in Australia to be registered, rated and labelled for their water efficiency in accordance with AS/NZS 6400:2005, Water efficient products: rating and labelling.

The Standard currently covers showers, dishwashers, washing machines, toilets and urinals, taps and flow controllers. The products are legally required to display the WELS label; labelling is voluntary only for flow controllers. Other products may be added to the scheme in the future.

The scheme also sets minimum water efficiency standards for washing machines and toilets.

The water efficiency rating is displayed on WELS products on a blue star water rating label. Labels for different categories of products differ slightly but all show two key pieces of information:

  • the WELS star rating – the stars indicate water efficiency: the more stars, the greater the water efficiency
  • the water consumption or flow figures:
  • the average water consumption per use (dishwashers, washing machines, toilets, urinals) or
  • the average water flow per minute (taps, showers, flow controllers).

For further information about the labelling scheme and to search for products, see the WELS website at

Some council development control plans specify water efficient fixtures in new developments and renovations. Check with your council on its requirements.

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