Lennox SureLight 97L4801 / 50A62-121 Furnace Control Circuit Board. Condition is "Used". Shipped with USPS First Class. Used. Tested. Works Recovered from a working furnace that was decommissioned for upgrading. Specific furnace models ive recovered this part from: - Lennox model # G50UH-48B-090-02 - Lennox...