Description
Ensure precise control and dependable performance in your HVAC or hydronic system with the Honeywell/Resideo 40003916‑521 Replacement Head, engineered as a drop-in OEM solution for V‑series zone valves.
Specifications:
- Compatible with V8043A5011 and V8043A5029
- Operates at 24 volts
- Provides normally closed position











