Lennox 84K81 Flue Cover Freon ensuring precise fitment and reliable

ensuring precise fitment and reliable blow-down performance

Its robust S1-FHM3728 frame allows for a precise fit

This diaphragm and washer set is specifically engineered for the Armstrong 90 series family

which reduces overall system efficiency

Lennox 84K81 Flue Cover Freon ensuring precise fitment and reliableThe 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