Vectaire Elegance Series Adaptor Plate for use with Vectaire Elegance and Elix extract fans when installing this 100mm diameter fans into existing 150mm core holes. This allows existing 150mm extract fans to be upgraded to better performance extract fans with only a 100mm diameter. This plate is designed to go behind the unit when fitting it to a wall or ceiling, designed to cover the footprint of any older, larger fan that has been fitted in the past.