White (but can also be Black) 32mm backpack vacuum cleaners and barrel commercial vacuum cleaners hose screw on hull fitting. These are at the back of the photograph.
They fit inside bent tubes and tank end hose cuffs with Click Ring The click ring is the black ring in the foreground.
The bent tube, hull and click ring are all shown together in the second picture.
Maximise the saving on postage and buy several Puregiene toilet rolls a box of Tissues and some soap or maybe some packets of dustbags, or a hose or a new floor tool, or some other accessories!
At the moment, standard postage within Australia is capped at a maximum of $20!