Product Overview
Williams Furnace Vent Extension for Direct Vent Furnaces. It is for use with walls that are 9 - 15 inches thick.
- 15" Extension for a 22,000 BTU Direct Vent Furnaces, model 22038 and 30,000 BTU Direct Vent Furnaces, model 3003
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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