The Nilfisk and Tellus GA70 and the Nilfisk and Tellus GM80 commercial vacuum cleaner container rubber seal and bumper ring. This is the thick, profiled, rubber bumper seal that is fitted on the top container and is in effect sandwiched between the top and bottom containers.
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!