Search ventilation by typeelectric powered fans12 and 24 volt roof fans for vehicles.Wind-driven fansRoof fans that rotate in the wind or wind.passive ventilationventilation products without moving parts such as floor ventilation and extraction unit (vent unit)roof hatchA roof hatch provides your motorhome/caravan with extra daylight without being bothered by any 'snoopers'.Connection setWith this complete connection set you can connect the 2 or 3 position switch to the fan.