7 Flow Restrictor for Shower Head: Water Flow Saver Adapter Set Flow Reducer Limiter 1/2 Inch Flow Restrictor Control Valve Flow for Fixed Shower Head 1.2/1.5/1.8/2/ 2.2/2.5 GPM - Amazon.com
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Patelai Shower Flow Reducer Limiter Set,Shower Head Flow Restrictor Water Saver Adapter Set Water Flow
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Shower Flow Reducer Limiter Set-Up To 70% Water Saving 4L/min For Shower Taps Bathroom Accessories 1/2 Inch - AliExpress
Faucet Aerator, Faucet Flow Restrictor Replacement Parts Insert Sink Aerator for Bathroom (10pcs) - Amazon.com
Water flow reducer for tap with female atomizer ∅ 22 mm - Cablematic