This aerator will fix your tap if water is not flowing in the correct direction any more due to scale on the old nozzle. It is designed to cut down on unnecessary water consumption (washing hands, brushing teeth, shaving etc) from your taps. Material: Stainless Chromed Brass Thread Size: M22mm FEMALE Material: Chrome Brass Gasket included Reducing faucet noise, Weight: 0.0440924524 pounds, Manufacturer: PEPTE