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Cross-reference the S1-324-36074-309 part number with your unit's data plate or parts list
The Armstrong Fluid Technology 174031MF-043
This model features a 15mm orifice providing a Kv value of 4 m³/h
this robust ignitor ensures reliable flame sensing and burner startup
Lennox X4137 Filter 326058-757 Cross-reference the S1-324-36074-309 part numberThe Lennox X4137 MERV 11 Carbon Pre Filter is a critical component for maintaining peak performance in PureAir PCO14 12 air purification systems. Engineered to handle high velocity airflow while minimizing pressure drop, this 14x25x21 filter serves as the primary stage of filtration, shielding the PCO catalyst and UV lamps from heavy particulate matter. The integrated activated carbon layer provides immediate VOC reduction and odor mitigation,
