Always verify secondary transformer or line voltage before installation

maintaining integrity in high-demand heating applications

this HVAC exhaust safety switch ensures your commercial or residential units stay within precise factory pressure tolerances

Simplified Installation: Includes necessary pilot tubing compression fittings and a multi-position bracket for faster field retrofitting

Constructed with a high-strength steel shell and solid core desiccant chemistry

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