Honeywell V8044C1065B, Three-way zone valve 1″ IT 24 V/50 Hz

Design F = with auxiliary switch (5-wire)
Design C = without auxiliary switch (3-wire)
V 4044 F B V 8044 C 1065 B: 1″ connection with manual adjustment
V 4044 C 1312: to be discontinued, remainders of stock still available