Lennox 81W46 Combustion Gasket 318820-201 this normally closed (NC) sensor

this normally closed (NC) sensor features a 55-degree Fahrenheit fixed temperature trip point with a 22-degree differential for automatic reset

it ensures high durability for systems handling air

the "U" suffix typically denotes a universal part number for retail packaging

preventing common issues like scale buildup or diaphragm failure that often plague generic aftermarket alternatives

Lennox 81W46 Combustion Gasket 318820-201 this normally closed (NC) sensorThe Lennox 81W46 Combustion Gasket (catalog number 81W46, manufacturing part LB 101510C) is a critical Genuine OEM Lennox part designed for high performance sealing within the combustion air assembly. This combustion air gasket is specifically engineered to maintain the structural integrity of the seal between the inducer motor blower and the heat exchanger collector box. Proper installation of this Lennox replacement gasket is vital for preventing