Dometic Fantastic Vent 3350

The Dometic FanTastic Vent 3350 features three blade speed (low, medium, high), a reverse switch sets the fan blade direction (OUT-exhaust or IN-intake), an automatic dome open and close switch. A built-in thermostat maintains your desired comfort level. Features a rain sensor that automatically closes the dome when wet and reopens once the sensor dries. The built-in manual knob allows for closing the dome in an emergency.