Shower Head Gpm Low-Flow Shower Head Confusion?

Low-Flow Shower Head Confusion? - shower head gpm

I recently installed a low-flow shower head Peerless was sitting in my closet. The installed version, which began to function well.

Originally I had the "low-flow thinking" meant that I had to use less water. When I saw the old head off, when I get to see a little and realize that you have said about 2.5 l / min /. Low-Flow Peerless Leader uses 2.5 gpm!

I was confused by this is expected since the "low-flow, to be more effective than other leaders. So I ask, are really small, low-flow sprinkler flow, and if you really want to MOC and not what the Packaging says in the box? You think I'm saving water?