I’ve been testing the Road Runner low-flow showerhead, which is rated at 1.59 gallons per minute. Currently, it’s my favorite showerhead, beating out my previous favorites: the 2GPM Oxygenics showerhead, and the 1.75GPM Nigara Earth Massage showerhead. The Road Runner has a unique feature: it has a built-in sensor that detects when the water gets warm enough for showering (95° F or 35° C), and then it “pauses” the shower by reducing the water flow to a trickle.
You don’t have to wait for the water to warm up, instead you go do something else like brush your teeth. This feature works quite well for me, and I might end up saving some hot water. You can see a video of the showerhead working here.
I also liked the consistent, rain-like flow of the Road Runner showerhead — the showerhead has a nice wide coverage pattern. The manufacturer says the Road Runner will produce a constantly flow, even if your water pressure is variable.
The Road Runner showerehead is available from Clean Air Gardening for $40.