A brass adjustment screw makes this flush head's water flow easily changeable. Its heavy-duty plastic body allows for long-lasting performance. This water sprinkler head mounts flush with the ground, making it undetectable yet excellent in watering small lawn and garden areas. It quickly connects to a riser via a 1/2-inch MPT (Male Pipe Thread) connection. It is small, durable and excellent for use as a single unit or in a complete yard watering system or drip system. This flush head sprinkler is a great value. Features and Benefits: Has a 1/2-inch male-threaded connection for easy installation, Covers areas from 10 to 15 feet, Brass adjustment screw allows for water flow changes, Mounts flush with the ground, Has a quarter-circle pattern with even coverage.