The Advent RV Air Conditioner® 13,500 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; 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. Camper Advent Roof Air Conditioner unit dimensions are 35.1" L x 29.9" W x 13.2" H. Available in White only. The RV Advent Air Conditioners are the best on the market. Don't hesitate when it comes to staying out of the heat with these quality designed RV Advent Air conditioners.