Standard adaptation: The diameter of the male connection of our faucet is 20.5 mm or 0.8 inch or 13/16 inch, not 1/2 inch, and the inner diameter of the male connection is 14 mm or 9/16 inch, which is only suitable for standard types Withdrawable hose,suitable for most applications, but not suitable for certain models of specific brands, please confirm the size and threaded lamp type, please check before placing an order Elaborate production and check valve design: Made of engineering-grade ABS plastic, high-quality chrome-plated treatment, connected to the internal check valve to reduce dripping after water. 3 functions and simple operation: easily switch water flow to spray, click once, it will keep the water mode, press the round button continuously, and pause the water while filling Provide strong water flow: Without built-in limiter, our spray head brings powerful flow and wide spray, which is efficient and convenient when washing dishes or washing the sink. Perfect match and no leakage: There are no annoying rubber buttons, it is perfectly mixed with the original buttons, just unscrew the broken one and screw it to your setup, if the size is compatible and installed correctly, there will be no water leakage.