Standard installation: Our pull down tap head has a male connection outside diameter of 0.8" (13/16" (13/16") or 20.5mm), not 1/2" (1.37cm) (9/16" (9/16") or 14mm) and is suitable for most applications, but not for some models of specific brands. Please note that it is only suitable for standard types of extraction hose, please check the size and thread type before ordering. Functional and stylish replacement part: this practical tap spray head has a clean look and is designed for use with kitchen pull-down taps. It is a stylish and practical replacement part to replace broken or clogged taps without having to buy the whole set. Three settings for easy operation: this kitchen sink spray head has three functions, water flow, spray and pause. Simply press and release the button to switch from regular water flow to spray. Press and hold the round button at the top and it will pause the water flow. , well made: Made from engineering grade ABS plastic with a brushed nickel finish, it is durable and resistant to daily rusting and discolouration, providing daily convenience for different rinsing/filling purposes. Easy to install, no extra tools required: installing this extractor spray head is as easy as unscrewing and screwing on the original spray head.