Here are pictures with the cover and the product code. My trailer is a 2019 with the Dometic Penguin II AC. Note the suggestion to block the holes while waiting on the cover is a good one. The birds started rebuilding within a day of moving our Ollie back under the carport. I would not leave this on for travel only for storage. The cover should work for dirt daubers as well as birds. I am sure you could get order on other sites as well.
This last month has been a really long year. Gosh, sometimes I find myself longing for those halcyon days when we just fretted about tire pressures, which vehicle was best for towing and whether propane is safe.