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or low flame signal
the "U" suffix typically denotes a universal part number for retail packaging
managing 2-stage heating and cooling sequences
it ensures high durability for systems handling air
Lennox 81W46 Combustion Gasket 318820-201 or low flame signalThe 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
