Solar Powered Boat Caravan Roof Ventilator White By MiDMarine

Solar powered roof ventilator is suitable for Power Boats, Sail Boats, Yachts and Caravans, where ventilation is required to keep humidity out or maintain a constant background intake of fresh air. Supplied with bothIntake and Exhaust fan blades, can be fitted as interchangeable intake or exhaust ventilator.

eBay