The 22mm female thread aerator (FM22) will fit your male thread faucet (diameter is an actual measurement of approximately 21.5-22mm) Universal female aerators for taps 30%-70% reduction in water consumption High-end materials, advanced technology, meticulous finishes, for guaranteed quality and longevity Easy to put on and very convenient to wash the sink It can adjust the size of the water flow. Shower water won't let water gradually seep everywhere. Foam mode Game changer for your sink A simple slight twist of the nozzle and the flow changes from stream (aerated) to shower. You can easily switch between them and the swivel action is really useful when rinsing dishes etc. The water from the shower will not let the water gradually seep everywhere. Everything is chrome, a simple and elegant design that works well. A great improvement in flow over the existing kitchen faucet. Full range deep cleaning sink You can direct the water flow in any direction, this which is great for cleaning things. Instructions Clear instructions as well as an extra adapter which means it can be used with either male or female screw parts (no matter whether your faucet screw is inside or outside) becomeveryrich Note: The data is manual measurement, please allow 1-100cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.