Model No.: 3288-300, 3188-250, 3188-200,? Complies with AWWA C515 Standard ? High quality graphite stem seal ? NPT plug on body ? 300 PSI Working pressure ? -10°C to 82°C Working temperature ? Sizes: 2.5”, 3”, 4”, 5”, 6”, 8”, 10”,12”, 14”, 16”,18”, 20” & 24