Use shower flow control valve to reduce the flow to 1.5 gallons per minute (gpm), 1.75 gpm LEED or 2.0 gpm LEED . You choose your flow rate.
Chrome plated solid brass
Pressure Compensating - holds flow rate steady 20psi to 80psi
Female 1/2"-14 NPT x Male 1/2"-14 NPT