G.C. Valves HS3GN24A24 is a coil for solenoid valves that are used in high temperature applications. This coil is compatible with NS211 AC solenoid valves. It accepts 24 VAC electrical currents and fits on 1/2" conduits. Designed to meet NEMA 4 standards. This genuine OEM part from G.C. valves ensures a proper fit when installed on the recommend models.