32mm and the and the vacuum cleaner hose threaded tank end cuff, fits dependable and the "wet" and most of Henry's commercial family!! It screws on the threaded entrance to the bottom container.
It screws onto the black vacuum hose with an anti-clockwise thread.
They also fits the series of backpack vacuum cleaners such as the
At the moment, standard postage is capped at a maximum of $25 within Australia, so maximise the saving on postage and buy something in the related parts below!