Black plastic Multi-fit connector on the container end of the hose of the Nilfisk IVB3 and  Nilfisk IVB5 and the Nilfisk IVB7 wet and dry commercial vacuum cleaner

They connect the black 38mm conductive plastic hose into the container of the  and the and the  and the H version, which are popular with asbestos removalists, such as the  and the 

At the moment, standard postage is capped at a maximum of $30 within Australia, so maximise the saving on postage and buy something in the related parts below!