Provides high efficiency, long-life reliability and low maintenance specifically for RVs. Outperforms competitive 13500 Btuh air conditioners. Exclusive "slinger" wheel recycles condensation onto the condensor coil to minimize water runoff along the roof and down the sides of your RV. Super strong, lightweight polymer cover won't rust, dent, scratch or discolor. Aerodynamic rooftop design reduces wind resistance. Features all copper coils, a powder-coated base pan. Fits a standard 14" x 14" vent opening. 13"H x 22"W x 41"L rooftop unit. Installed weight of roof and ceiling unit is approximately 94 lbs. 2-1/2"H x 19-1/2"W x 25-1/2"L ceiling unit. Free blow or ducted ceiling configurations available. Inside unit sold separately.