Quality material: The faucet aerator is made of ABS plastic, which is durable for long-lasting use and easy to install, the fine mesh has good filtering effect, which can maintain stable and constant water flow, without water splashing Standard size: top outer diameter is 20.9 mm/ 0.82 inch, bottom outer diameter is 18 mm/ 0.71 inch, more standard universal fit 22 mm , 24mm faucet Application: suitable for installing and replacing faucet faucets in homes, hotels, public facilities and other places, saving water and filter it Function: Mitigate the impact of water and prevent water splashing by generating a lot of bubbles, the filter inside can filter out most impurities Package includes: comes with 12pcs faucet aerators in a bag, enough for your different needs, such as home, hotel, communal facilities faucet faucets