"A Scottsdale maker of shower heads is in hot water with conservation
officials. Zoe Industries Manufacturing recently was accused of producing
shower heads that produce a flow exceeding the federal standard of 2.5
gallons per minute.
"Al Dietemann, head of water conservation for Seattle, said an independent
laboratory determined Zoe's Nautilus II Showerbuddy sent out a flow of 12.7
gallons per minute when the water reaches the head, with a force of 80
pounds per square inch."
Story at: http://www.eastvalleytribune.com/index.php?styW174
An earlier story revealed the secret: THREE shower heads on one pipe.