Danco Assorted Aerator Sealing Washers are designed to fit ly between the end of the spout and the aerator in a faucet, ensuring a secure and leak- connection. These washers are essential for creating a positive seal at the faucet spout, effectively preventing leaks and drips that can waste water and increase your utility bills. Replacing worn-out washers is a simple, way to stop faucet drips, helping you conserve water and reduce costs. This assorted pack includes a variety of sizes and types, making it a versatile and convenient solution for different faucet models and applications. Model Number: 36450B