The Orbit Water Master 57100 is a 3/4" NPT automatic in-line sprinkler valve designed for easy installation and reliable watering system control. Made by the brand Orbit in the United States, this flow control valve features a simple electric operation and is suitable for use with sprinklers. With a male thread size of 3/4 inches and a single outlet, this valve offers a convenient solution for managing water flow in outdoor spaces like yards and gardens, ensuring a consistent and efficient watering experience.