Lennox 50W57 Gasket 340793-762 The MERV 11 efficiency rating

The MERV 11 efficiency rating is ideal for residential systems

The integration of a Style 5 pressure element with a 1/4" external flare fitting ensures rapid response to refrigerant pressure fluctuations

the V46BT-3 Valve delivers superior performance

allowing for reliable operation across various unregulated DC power leads

Factory-calibrated for a 9 PSI crossover point

Lennox 50W57 Gasket 340793-762 The MERV 11 efficiency ratingThe Lennox 50W57 Gasket (also identified by part number R20539501) is an essential OEM component for maintaining a gas tight seal in condensing furnaces. As a veteran technician, you know that a compromised cold header collector box gasket is often the root cause of persistent condensate leaks and pressure switch tripping in high efficiency units. This genuine Lennox replacement part is engineered to withstand the demanding thermal cycling and