DOMETIC 641935CXX1J0 BLACK PENGUIN II 13,500 BTU LOW PROFILE AC WITH HEAT STRIP FOR USE WITH SINGLE ZONE LCD THERMOSTAT The Penguin from Duo Therm is ruggedly designed for long life. The Penguin's aerodynamically contoured shroud is made of super-durable, UV resistant high-impact polystyrene. The roof unit installs easily in the standard vent opening in any thickness of roof. THESE UNITS FEATURE: * A height of only 9-1/2 inches above the roofline. * 13,500 BTUs of cooling - the highest power of any single RV rooftop unit. * Blower cycles automatically in cooling and heating modes, for complete comfort from 40F on up. 11,000 BTU and 13,500 BTU units also available. * Contoured shroud/solar panel mount further minimizes wind drag. * Contemporary contours conceal vent openings for a smooth, clean look. * Available in Shell White or Polar White. * A 3-speed blower motor and washable return air filter produce airflows that are cool and clean. * Penguin units allow use of analog thermostats or the new Duo-Therm Comfort Control Center based on manufacturer's application. * Uses electric or analog relays, in either air distribution box or ducted installations.