Irritrol's 550R 3/4" Pop-Up Rotor Sprinkler comes from the 550R Series. It has a 3/4" female thread. It features a 5" pop-up height. The 550Rhas a flow rate of .74 - 9.7 GPM. It has a 40 - 360-degree spray arc. The 550R has a 25' - 50' spray radius. It has a pressure rating of 25 - 65 PSI.