This is a low-profile Dometic Duo Therm Penguin edition A/C unit. It will be great for anyone not wanting to see that horrible buldge sticking up on the top of their camper by the existing A/C unit. Dometic has been leading the world with RV Air Conditioners for a long time, and now you can one too! This is a non-ducted unit and does not include the ceiling assembly. Must be purchased separate.