Evolve understands that many people turn on the shower and then, while waiting for the hot water to kick in, get sidetracked making coffee or wondering where in the world Matt Lauer is. To prevent wastefulness, evolve showerheads reduce the water flow to a trickle once water temperature reaches 95 degrees Fahrenheit. Once you get in the shower, you can flip a switch or pull a cord to re-activate the regular water flow. Their new Roadrunner showerhead ups the low-flow ante with a flow rate of only 1.59 gallons per minute.
Pictured: Evolve Roadrunner in polished chrome