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Its robust S1-FHM3728 frame allows for a precise fit
10" WC requirement and barbed port size
ensuring precise fitment and reliable blow-down performance
Check for continuity across the coil terminals (A1-A2)
This diaphragm and washer set is specifically engineered for the Armstrong 90 series family
Lennox 84K81 Flue Cover Freon Its robust S1-FHM3728 frame allowsThe Lennox 84K81 Flue Cover is a critical OEM component designed to maintain the structural integrity and venting efficiency of residential gas furnaces. Engineered as a high durability sheet metal flue cover, this assembly includes the necessary furnace flue gaskets to ensure a gas tight seal at the exhaust transition point. In the field, a compromised or corroded cover can lead to dangerous combustion gas leaks and improper draft, which triggers
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