This is a 6"-8" clay pot adaptor, which increases your flue diameter from 6"/150mm to 8"/200mm to connect to a clay or concrete liner chimeny. Just fold out the flanges to attach to the chimney sump. This UK Made, stainless steel adaptor is in unused condition but may be a bit dusty/scuffed from shelf storage. This premium model has a condensate trap which means any condensating flue deposits coming down the chimney will be directed back into the appliance and be burnt off rather than leaking out of the flue.
