Mushroom nozzle, also known as hemispherical nozzle. It utilizes the principle of refraction to form a uniform thin film when spraying waterThe shape can form a complete mushroom flower shape under no wind and certain water pressure. This type of water spray is suitable for indoor or courtyard water spray pools. A valve can be installed below the nozzle to adjust the water volume, and the top cover of the nozzle can also be adjusted to achieve the best spray pattern. The principle of the morning glory nozzle is the same.