Just picked up a couple of these and they fit pretty well to a standard garden hose, a bunnings spray gun and to a tap fitting. The outer main parts are brass but there is a inner nylon part which is a ring with legs/teeth that pushes the hose into the brass, but at $2 I'm willing to take a punt. Seemed to be plenty of stores with stock nationwide.
Product Info
Easily connect to other compatible plumbing fittings and hose adaptors you may have. Made from durable brass to resist the elements and corrosion.
Features
* 1/2" brass hose connector
* Fits standard 12mm hose fittings
* Made from solid brass to resist corrosion
Where?