Common Questions Is the flange included with this model

Unlike standard fittings

Durable Construction: Features a stainless steel diaphragm and power element for superior resistance to corrosion and vibration-induced failure

For technicians servicing residential air conditioning or commercial refrigeration units

Lennox 74W71 Manifold 326058-758 Common Questions Is the flangeThe Lennox 74W71 Gas Manifold (OEM part 103087 02) is a precision engineered component designed for high efficiency fuel distribution in Lennox gas furnaces and select commercial rooftop units. As a direct fit HVAC replacement part, it ensures balanced gas flow to the burner assembly, mitigating pressure fluctuations that cause combustion instability and resonance noise. Constructed from aluminized steel, this manifold resists the high heat corrosion