Package Contents: You will receive 10 pieces of M18.5 faucet aerators and 2 pieces of aerator wrenches, providing sufficient quantity for daily use. Due to varying water quality, it is recommended to replace the aerator every 3 to 6 months to maintain water hygiene and safety. Premium Material: The aerator is made of high-quality plastic, ensuring durability and strength. It features excellent craftsmanship, is corrosion resistant, does not clog, rust, or produce unpleasant odors. These faucet aerators are compatible with most M18.5 faucets. Water Saving: This faucet aerator operates with low noise and helps conserve water. It mixes water and air to create a non-splashing, smooth, and consistent flow. Simple Installation: These kitchen faucet aerators are easy to install and remove without the need for additional tools. Use the included wrench to securely attach the aerator to the faucet. The filter head can be easily removed for cleaning at any time. Wide Application: Suitable for use in homes, hotels, and public facilities. Ideal for use on kitchen sink faucets and basins to promote water conservation and filtration. Perfect for repairing low-flow faucets or replacing faulty aerators without replacing the entire faucet.