The DuraSea Rooftop air conditioner is built to endure harsh marine conditions with extra protection for its components thanks to a special anti-corrosion coating. Ideal for use on patrol boats, houseboats and supply vessels, it is designed to be installed on a flat deck or rooftop and cool the area directly below. This cleverly designed air-cooled unit requires no plumbing or ducting making installation quick and easy. It’s three-speed fan for cooling and ventilation, vibration-free operation and high efficiency: make it as convenient as it is tough!