This study by the Environment Agency aims at estimating potential water savings from individual product groups of water-using appliances. It also looks at practical implementation issues, as well as costs accruing to domestic customers and to water companies carrying out large-scale retrofit programmes. The products reviewed include washing machines, dishwashers, toilets, showers and direct water heating appliances. The study showed, among others, that for many appliances there is no information on the relationship between price and performance. It also derives potential implications for demand management policies and programmes in England and Wales.