Media Versatility: Nitrile (Buna-N) seals offer excellent resilience against common non-corrosive fluids and oils

this model serves as a direct replacement for the D-3073 series and a functional replacement for the older D-251 pneumatic actuators

By replacing a tripped or faulty internal protector with the genuine 971-0329-04 kit

Precision Fit: Standard 5/16" shaft fits most standard fan blades without modification

this component is rated strictly for 120V AC operation

Lennox 35K70 Combustion Chamber Kit 321042-401 Media Versatility: Nitrile (Buna-N) sealsThe Lennox 35K70 is a critical gas furnace combustion chamber kit engineered for precise flame containment and thermal management. As a direct OEM furnace replacement part, this kit is vital for technicians addressing cracked combustion chambers or heat damaged liners that compromise heat exchanger integrity. The assembly is designed to maintain the specific flame pattern and airflow dynamics required for high efficiency Lennox furnace models. By