Believe it or not, the engineering designator you are looking for is "Garden Hose" fittings.

Be advised that direct measurement of a lot of SAE plumbing stuff doesn't actually correspond to what the size they call the fitting is. Just to confuse, I guess. So it is sometimes a measurement of 7/8" but the fitting may well be designated as a 3/4. Stuff like that.

Some web places that may ship down under, be sure to inquire first and get it in writing:

http://www.factorydirecthose.com/site/932652/page/868298

http://fittingsandadapters.com/garhosad.html

http://www.mcmaster.com/#garden-hose-fittings/=5dyglm

http://www.mcmaster.com/#quick-disconnect-garden-hose-fittings/=5dygu4

Note: It may well be faster and easier to find out if there are locally available hose ends for your country that could be attached permanently to the machine, rather than searching for adaptors.

A good man with a brazing torch can also rig one side to another by brazing two together in the middle...


--Mac