Essex & Suffolk Water supplies around two million customers in Essex and Suffolk, and its own water products page says simply that “our free products will help save water”.

You pick and choose the items you want rather than taking a standard box – shower flow regulators, Save-a-Flush cistern bags and trigger hose guns are the staples – and the kit is posted out free.

Restricted to households in the Essex & Suffolk Water supply area. Water butts are offered too, but at a discounted price rather than free.