Showerhead Regulations By State

In the US there is a federal mandate limiting the flow rate of replacement shower heads to 2.5 Gallons Per Minute (GPM). 

The table below shows the maximum flow rate for a replacement showerhead that can be sold in various states and regions within the US..

Please note that plumbing codes may change, and we may not always have the latest regulations. For the most up-to-date information, please check with your local municipal offices.

State Current Max Flow Rate For Retail Sales of Replacement Shower Heads*
Scottsdales, Arizona 2.0 GPM
California 1.8 GPM
Colorado 2.0 GPM
Ft. Collins, Colorado 1.8 GPM
Miami-Dade County, Florida 1.5 GPM
Hawaii 1.8 GPM
Chicago, Illinois 2.0 GPM
Maine 2.0 GPM
Maryland 2.0 GPM
Massachusetts 2.0 GPM
New Jersey 2.0 GPM
New York 1.8 GPM
New Your City 2.0 GPM
Nevada 2.0 GPM
Oregon 1.8 GPM
Rhode Island 2.0 GPM
Vermont 2.0 GPM
Washington 1.8 GPM
Washington D.C. 2.0 GPM
All other US States 2.5 GPM
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