Rainbird HV NPT Electric Remote Control Valve with Flow Control, 1" 1 in. (26/34) female x female threaded plastic residential irrigation valve Unique, easy-to-turn, pressure-assisted flow control mechanism Eccentric diaphragm for smooth closing, less water hammer Compact design, 2.54 in. spin radius for tight installations (install more valves in a single valve box) Captive multi-drive screws for ease of access and faster bonnet removal