Lower Emissions: Maintains a precise air-to-gas mixture to keep CO levels within safe operational parameters

optimizing energy consumption

Does this fit Intertherm and Miller units

and 13S zone valves

replacing the terminal kit is essential for preventing voltage drops and ensuring the integrity of the electrical circuit

Lennox 27M18 Orifice 321142-301 Lower Emissions: Maintains a preciseThe Lennox 27M18 Orifice is a precision engineered 052 sized flow control component essential for maintaining the manifold pressure and combustion efficiency of Lennox commercial and residential heating systems. Designed as a direct OEM replacement part, this orifice (MPN: 27M18, replaces LB 99225) ensures accurate gas metering for Lennox T Class rooftop units and gas furnaces, specifically compatible with models including KGA036S4, KGA092, and LGH180