Practical Threaded Adapter: The M16 to M22 faucet adapter allows you to connect M22 faucets to M16 faucets. It allows you to extend the adapter for faucet aerators and easily adjust the sink flow rate and spout height, thereby increasing the connection length of the aerator. Adapter Size: M16 male to M22 faucet adapter washers. Package and Size: 2 faucet adapters. Premium brass faucet adapter with external thread, corrosion resistant and durable. Wide Application: The faucet adapter allows you to easily adjust the flow rate and spout height of the sink. It can not only be used as a sink adapter, but also can be connected to a kitchen, bathroom, or garden faucet aerator. Easy Installation: Unscrew the existing aerator from the faucet you need to replace and simply tighten the adapter by hand. Use the rubber gasket to prevent leakage.