Our highly efficient Standard Faucet Aerators increase spray velocity, reduce splash, save water, and save the energy used to heat water. Available with flow rates of 1.0, 1.5 and 2.0 gallons per minute (GPM). Additionally, we have a WaterSense certified model FA012CPB1-WS with a 1.5 GPM flow rate. These aerators feature an all brass chrome plated body with dual threading to fit most male and female faucets, Santoprene washers and celcon internal parts. Meets the performance requirements of ANSI specification A112.18.1, CSA, CEC and DOE.