The Advent Air Conditioner 15,000 BTU roof-top high-efficiency air conditioner was designed specifically for the rigors of the RV lifestyle. Backed up with a No-Hassle, 2-year Warranty, the system is easy to install and operate, fitting into a standard 14 1/4" x 14 1/4" vent opening for easy replacement of your existing unit. Premium features include additional evaporator cooling fins offering higher cooling efficiencies; An extremely rigid frame consisting of a composite of foam and metal parts allowing for quieter operation; Premium, extra-thick water seal gasket keeping moisture from leaking into the RV or Camper; Removable and washable filters that keep the interior clean and free of debris; Motor overload protection for longer life; Non-ozone depleting environmentally-friendly refrigerant. Ducted or non-ducted ceiling packages and Heating Element options are available. Advent RV Air Conditioner Roof unit dimensions are 35.1" L x 29.9" W x 13.2" H. Available in White only. Advent Camper air conditioners will also match up with the actual Dometic too.