Check the listing for details. Shower Flow Reducer Limiter Set,Water Flow Saver Adapter,Restrictor Valves. Color: Black, Condition: New, Made in China. Listed at 15.13 USD. Specification:Material: POMWorking Temperature: 0~90℃ Water flow reducer is approx. 0.56 x 0.54 x 0.09inch / 14.2mm x 13.8mm x 2.4mm, Restrictor valve is approx. 21mm/1.2inch.Washer is approx. 19mm/0.74 inch.Description:Features: The Shower Flow Reducer Limiter Set includes 1 piece of 1/2 inch restrictor valve, 2 pieces of washers, and offers various flow rates of 1.2/1.5/1.8/2.0/2.2/2.5/3.0 gpm. It is designed to help save water and reduce water usage during showers.Function: The flow reducer limiter set effectively reduces the water flow from your shower head, allowing you to conserve water and save on your water bills. It helps to regulate the water pressure and maintains a consistent flow rate for a better experience.How to Use: Simply install the restrictor valve and washers in between your shower head and the water pipe.