Neoperl 13 1000 5 PCA Shower Adapters, 1.5 GPM Maximum Flow Rate, Female 1/2"-14 NPT x Male 1/2"-14 NPT, Brass, Chrome Finish, Green Flow Regulator

LASCO 08-2483 Plastic Thread on Shower Head Restrictor

YOO.MEE Water Flow restrictor Combo for 2.5 GPM and 1.80GPM, Suitable for The Fixed Shower Head or Handheld Shower with The Holes Diameter of 0.552'' (14mm)

Shower Flow Reducer Limiter Set - Up to 70% Water Saving 4 L/min

Delta RP62734 1.5 Gpm Handshower Flow Regulator Washer

0.5 GPM Low Flow Dual-Thread Faucet Aerator - Kitchen and Bath - 6-PACK

Niagara Earth Massage 1.25GPM Low flow showerhead

Pressure Compensated Bubble Spray Faucet Aerators - Niagara Conservation | Standard Chrome Sink Faucet Aerator with Low 1.0 GPM Flow Rate | 6 Pack (N3210B-PC-T)

Water Saving Shower Flow Reducers Regulators Adaptors Set - 7-20 L/min - 1/2"

Shower Flow Restrictor 30% Water Saving Restrictor Head Save Energy Inner Component

Tri-Max 3 Flow Rate Aerators - Niagara Conservation | Chrome Aerator w/ Needle Spray (N3610CH)