This small device (approximately 5cm high by 2cm diameter) regulates the flow of a shower to no more than 7.8 litres per minute, this can save both water and the associated energy of heating it. It only requires simple installation (no plumber required) is WRAS (Water Regulations Advisory Service) certified and has a 15 year manufacturer's guarantee.

To date more than 300,000 have been sent to homes in Great Britain, which equates to a massive 300,000 tonnes of CO2, and the good news is that you may be able to get one FREE! Why not combine it with a ShowerBoB from Sutton & East Surrey Water or a red Eco Showerdrop from npower, both free subject to availability.