Central ducted vacuum cleaner system 50mm PVC pipe flanged coupling to switched flap valves.
This is for mounting the flap-valves or wall outlets in the floor or in deep wall cavities such as in hospitals or hotels.
As it's light, maximise the saving on postage and buy some of the related parts below, and maybe dustbags and the filters or a new floor tool.
At the moment, standard postage within Australia is capped at a maximum of $20!
We at TVD carry out in-home repairs on built-in ducted vacuum systems in the Perth area from $135, call 08 9362 6044