good description of the cooker hood which was important because I needed a rear round exit to avoid modifying existing vent geometry. Although product was more expensive than similar hoods, it was the only one I could find with a rear exit, proving more expedient in the long run. 100 and 120 adaptors supplied as standard to suit top or rear outlet. Only took about an hour to remove old hood and fit new with only a screw driver required. Delivery was within 3 days of order . On the whole I've been extremely satisfied. Looks good and is very efficient at keeping the kitchen well ventilated and condensation free.