The Vent Cover for Ventline Old-Style Rounded Dome Trailer Roof Vents - Smoke part # BV0554-03 is designed to fit the very common Ventadomes and post-1995 Elixir trailer roof vent. If you have one of these models this will be your replacement.
If you have another brand roof vent please let me know and I will give you the correct replacement. The manufacturer's name and model number should be on the vent.
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