MasterFIT™ Water Saving Dual Thread Watersense Bathroom Faucet Aerator improves flow performance, reduces splash, and saves water in bathroom sinks. It uses only 1.0 gallons per minute. The aerator is made of brass and fits both male and female bathroom faucet spouts. The WaterSense® labeled water efficient design exceeds the national energy and water efficiency standards (ANSI/ASME A112.18.1). Saves up to 7,500 gallons of water annually per aerator.