Williams Furnace Company 6A190 Flue Extension for Gravity Direct Vent Furnaces


A Flue Extension, extends the flue outlet tube. It is for use with a standard maximum 9" wall. It is for use with Williams 3003 Series Furnace Direct Vent Furnaces.

Click here to download the replacement parts lists and exploded view diagrams. Please refer to the appropriate section for your specific furnace.
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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.

Usually Leaves Warehouse in 2 - 3 Business Days
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