This Switch Box Cover is for use with Williams Forsaire Furnaces. It is for use with 3508, 5008, 5508, and 6508 models of Counterflow Top Vent Furnaces, as well as 6008A Forsaire Magnum Top Vent.
Please call Williams Furnace Technical Support at 888-444-1212 to confirm the correct part required for
your specific furnace needs. You will need the model and the serial number of your specific furnace.
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