Dometic Mushroom Roof Vent

This adjustable grey mushroom vent can be fitted to most steel or glassfibre roofs and ensures adequate, adjustable ventilation without the need to leave windows open. This vent is designed for a roof 25-45mm thick. If your roof is thinner, parts of the vent can be shortened. Aperture needs to be 130mm External diameter is 190mm The Dome airflow is as follows: (note this fan is NOT electric) - 3-12m3/h with the fan off and at wind speed of 1-4m/s - 65m3/h with the fan speed set to half - 105m3/h with the fan speed set to full To allow the vent to close and open a small circlip has to be removed from the centre, by first removing the three screws holding the dome in place This vent is Manual not Electric