My first submission so be gentle ;)
Free shower head to all Thames water customers, 3 to choose from, plus a water saving inline filter. Many more items to order too.
This aerating showerhead will cut the amount of water you use when showering without reducing the performance of your shower *.
Retail value £44.05.
Just to confirm these shower heads will work with all Power Showers, but not with electrically heated Electric Showers.
link - http://www.thameswater-savewatersavemoney.co.uk/products/free-water-saving-pack