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Outer Diameter of Mounting Flange of Ventline Vanair Trailer Roof Vent # VP-543SP


Hi, Im interested in this part, but concerned about the space required for mounting to the roof. My room has ribs and limits the flat mounting space. What is the outer diameter of the black mounting flange that bolts to the roof?


Expert Reply:

The Vanair Trailer Roof Vent, part # VP-543SP fits a 6-1/4 inch rough opening. The mounting flange you asked about measures right at 8-5/8 inches in diameter.

expert reply by:
Mike L

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