The flow rate indicates how much water can flow out of your shower head and is measured in gallons per minute (GPM). Federal regulations mandate shower head flow rates can't be higher than 2.5 GPM ...

This high-pressure shower head from High Sierra is one of the more innovative low-flow units. The unique mechanism generates more focused, free-flowing streams. It produces a dense spray for a 1.5 ...

Along the high side, an 18-inch chrome extension arm is attached, with the rainfall shower head on the other end. Both the arm and head arm adjusted to meet the desired height and angles.

Mr. Trump’s new order restores language from a 1992 federal law, enacted to conserve water, that prevented new American-made shower heads from spritzing more than 2.5 gallons of water per minute.

But I do know how to calculate flow rates. The shower head is rated at 1.25 gallons per minute. Now, it delivers that much water in 27 seconds, for a flow rate of nearly 2.8 gallons per minute.