Received item. Unused. Specifications: Female thread size: 19mm x 5.5mm. Thread pitch: 1mm. Male thread size: 22mm x 6mm. Thread pitch: 1mm. Material: The faucet adapter is made of brass, which does not rust and is durable for long-term use. Application: The tap aerator connector is suitable for various faucets and can be used to connect sink sprays, aerators, water filters, showers, garden hoses, etc. Installation: Installation is simple and requires no tools. Simply lift the connector to complete the installation. Note: Before assembling the corresponding product, it is recommended to wrap the threaded surface of the product to prevent leaks after assembly.