Lennox 13H33 Gas Valve R-407A Look for significant rust scaling

Look for significant rust scaling

For a full assembly refresh

though specific duct pressure and seal friction should be verified

Is this compatible with the larger air arm assemblies

Lennox 13H33 Gas Valve R-407A Look for significant rust scalingThe Lennox 13H33 Gas Valve is a critical OEM replacement part designed for high performance HVAC natural gas regulation in residential and light commercial equipment. This single stage gas valve features a standard 1 2" NPT inlet outlet, ensuring a direct mechanical fit for a broad range of Lennox, Armstrong, and Ducane furnaces. Specifically engineered for electronic ignition systems, the 13H3301 valve operates on 24 VAC control voltage and comes