LDR 530 WS2120-84 One Touch Tap Faucet Aerator, Saves up to 84% Water use, 15/16" X 27 Male Thread, Lead-free, Chrome Chrome Finish - Includes extra adapter ring 55/64" ID 15/16 OD Saves up to 84-percent water use over conventional faucets Maintain a more sanitary wash area, aerator is automatically cleaned during each use Reduces cross-contamination and eliminates need to turn off faucet using handles Lead-Free, Limited lifetime warranty