Valve,Assembly, 2 Way Normally Open, 3/4", NPT x Union Male, 6.3 Cv Equal Percentage Flow Forged Brass Body with Brass Trim Valve Body and 24Vac, Non-Spring Return Floating Actuator
2W N/O Brass FxUM 3/4" 6.3 For Siemens Building Technology Part# 259-02045