Honeywell Zone Valve, 2-Way Low Voltage, Series: V8043, 3/4 in Nominal, C, 300 psi, 8 Cv, 24 VAC, 0.32 A, 50 to 200 deg F Water Temperature, 8 psi Differential, 18 in Lead, Brass, 4-3/8 in H x 3-1/2 in W x 2-3/8 in D
Two-way on-off low voltage valves consist of an actuator and valve assembly for controlling the flow of hot water.