STC, 4V310-3/8-2A-D, 3/8" NPT 5 Port 4 Way 24VAC DIN Single Solenoid Valve, 200C Coil Features:Port/Position/Solenoid: 5/2/1 Four Way Valve Single Solenoid Operating Temp: 14-140 deg. F Operating Pressure: 21 - 115PSI Response Time