White-Rodgers 1311-104 Valve

White-Rodgers 1311-104 1-1/4" 24V 3-Wire Zone Valve With Aux Switch 3 Wire Hydronic Zone Valve For 1-1/4" I.D. Tubing, 15 PSI Maximum Differential Across Valve, 240F Maximum Water Temperature, 24 VAC, 60Hz, 50 PSI Maximum System Pressure Replaces: F94-0779