Roof ventilation with a white dome, 400 x 400 mm. The Dometic FanTastic Vent 2250 features three fan speeds (low, medium, high) and a reverse switch that allows you to change the direction of the fan (OUT for exhaust, IN for intake). A handle makes it easy to manually lift the dome, and an integrated thermostat provides added comfort. Set the thermostat to your preference, and the fan takes care of the rest. Its design ensures consistent adherence to the temperature settings. It is ideal for use while sleeping or when you need to leave your pet behind.