Always verify secondary transformer or line voltage before installation

replacing a faulty digital heater circuit board with this genuine component restores the unit to factory specs

reducing pressure drop and simplifying installation in tight mechanical runs

Its robust dimensions (7

Lennox 51W11 Vent Kit 320720-756 Always verify secondary transformer orThe Lennox 51W11 Vent Kit (OEM part 605384 01) is a professional grade flush mount vent termination kit designed to isolate intake and exhaust lines for high efficiency gas furnaces. As a veteran preferred solution for achieving a clean, low profile exterior finish, this kit is compatible with 2 inch, 2. 5 inch, and 3 inch PVC pipe. It is specifically engineered for Lennox high efficiency condensing units, ensuring proper airflow dynamics while