The Dometic Harrier Plus is a rooftop RV air conditioner that is efficient, powerful and quiet. It uses the advanced technology of a dual-cylinder inverter compressor that is smoother and quieter when operating and has a powerful cooling capacity. Featuring a lightweight design and low profile, the Harrier Plus will impress with its functionality, output, cooling and heating. The innovative dual-cylinder inverter compressor has a patented design that helps reduce vibration and provides improved performance over conventional compressors. It’s the kind of smart design that puts Dometic air-conditioners in a league of their own and allows RV owners to enjoy cool and refreshing air at the touch of a button.